I 18.04.2 Ubuntu LTS, complaining about font?

Per day may hang up to 5 times. When it jerks, you can move the cursor.
In fact, the fonts put the system? And how to fix it?

Monitor using top percent was in the range of 15-20 %, free RAM 1.5-1.7 gb.

The characteristics of the laptop

i5-8250u
8 gb ram
ssd


What settings in /etc/fonts/fonts.conf

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<!-- /etc/fonts/fonts.conf file to configure system font access -->
<fontconfig>

<!--
 DO NOT EDIT THIS FILE.
 IT WILL BE REPLACED WHEN FONTCONFIG IS UPDATED.
 LOCAL CHANGES BELONG IN 'local.conf'.

 The intent of this standard configuration file is to be adequate for
 most environments. If you have a reasonably normal environment and
 have found problems with this configuration, they are probably
 things that others will also want fixed. Please submit any
 problems to the fontconfig bugzilla system located at fontconfig.org

 Note that the normal 'make install' procedure for fontconfig is to
 replace any existing fonts.conf file with the new version. Place
 any local customizations in local.conf which this file references.

 Keith Packard
-->

<!-- Font directory list -->

<dir>/usr/share/fonts</dir>
<dir>/usr/local/share/fonts</dir>
 <dir prefix="xdg">fonts</dir>
 <!-- the following element will be removed in the future -->
<dir>~/.fonts</dir>

<!--
 Accept deprecated 'mono' alias, replacing it with 'monospace'
-->
 <match target="pattern">
 <test qual="any" name="family">
<string>mono</string>
</test>
 <edit name="family" mode="assign" binding="same">
<string>monospace</string>
</edit>
</match>

<!--
 Accept alternate 'sans serif' spelling, replacing it with 'sans-serif'
-->
 <match target="pattern">
 <test qual="any" name="family">
 <string>sans serif</string>
</test>
 <edit name="family" mode="assign" binding="same">
<string>sans-serif</string>
</edit>
</match>

<!--
 Accept deprecated 'sans' alias, replacing it with 'sans-serif'
-->
 <match target="pattern">
 <test qual="any" name="family">
<string>sans</string>
</test>
 <edit name="family" mode="assign" binding="same">
<string>sans-serif</string>
</edit>
</match>

<!--
 Ignore dpkg temporary files created in fonts directories
-->
<selectfont>
<rejectfont>
<glob>*.dpkg-tmp</glob>
</rejectfont>
</selectfont>
<selectfont>
<rejectfont>
<glob>*.dpkg-new</glob>
</rejectfont>
</selectfont>

<!--
 Load local system customization file
-->
 <include ignore_missing="yes">conf.d</include>

<!-- Font cache directory list -->

<cachedir>/var/cache/fontconfig</cachedir>
 <cachedir prefix="xdg">fontconfig</cachedir>
 <!-- the following element will be removed in the future -->
<cachedir>~/.fontconfig</cachedir>

<config>
<!--
 Rescan configuration every 30 seconds when FcFontSetList is called
-->
<rescan>
<int>30</int>
</rescan>
</config>

</fontconfig>


syslog

Jan 20 18:26:57 maxim-TM1701 org.gnome.Shell.desktop[1605]: [10751:1:0120/182657.890290:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:27:51 maxim-TM1701 org.gnome.Shell.desktop[1605]: [10751:1:0120/182751.114616:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:32:57 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11336:1:0120/183257.100881:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:32:57 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11336:1:0120/183257.102241:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:33:03 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11335:1:0120/183303.526750:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:33:03 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11335:1:0120/183303.527160:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:33:03 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11335:1:0120/183303.553063:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:33:03 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11335:1:0120/183303.553574:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:33:17 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11372:1:0120/183317.197306:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:33:17 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11372:1:0120/183317.198046:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:33:17 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11372:1:0120/183317.223798:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:33:17 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11372:1:0120/183317.224113:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:34:32 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11610:1:0120/183432.594311:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:34:32 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11610:1:0120/183432.595092:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:34:34 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11609:1:0120/183434.505095:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:34:34 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11609:1:0120/183434.505619:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:34:34 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11609:1:0120/183434.506440:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:34:34 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11609:1:0120/183434.506870:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:34:34 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11609:16:0120/183434.659915:ERROR:data_channel.cc(54)] Accepting maxRetransmits = -1 for backwards compatibility
Jan 20 18:34:34 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11609:16:0120/183434.660020:ERROR:data_channel.cc(59)] Accepting maxRetransmitTime = -1 for backwards compatibility
Jan 20 18:34:38 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11609:16:0120/183438.362226:ERROR:data_channel.cc(54)] Accepting maxRetransmits = -1 for backwards compatibility
Jan 20 18:34:38 maxim-TM1701 org.gnome.Shell.desktop[1605]: [11609:16:0120/183438.362327:ERROR:data_channel.cc(59)] Accepting maxRetransmitTime = -1 for backwards compatibility
Jan 20 18:34:39 maxim-TM1701 org.gnome.Shell.desktop[1605]: [3462:11387:0120/183439.677140:ERROR:cert_verify_proc_nss.cc(1011)] CERT_PKIXVerifyCert for kitbit.net failed err=-8181
Jan 20 18:34:39 maxim-TM1701 org.gnome.Shell.desktop[1605]: [3462:3493:0120/183439.677460:ERROR:ssl_client_socket_impl.cc(969)] handshake failed; returned -1, SSL error code 1, net_error -201
Jan 20 18:35:01 maxim-TM1701 CRON[11775]: (root) CMD (command-v debian-sa1 > /dev/null && debian-sa1 1 1)
Jan 20 18:39:27 maxim-TM1701 org.gnome.Shell.desktop[1605]: [12033:1:0120/183927.169784:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:39:27 maxim-TM1701 org.gnome.Shell.desktop[1605]: [12033:1:0120/183927.171469:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:39:31 maxim-TM1701 org.gnome.Shell.desktop[1605]: [12032:1:0120/183931.587570:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:39:31 maxim-TM1701 org.gnome.Shell.desktop[1605]: [12032:1:0120/183931.588023:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:39:39 maxim-TM1701 org.gnome.Shell.desktop[1605]: [12108:1:0120/183939.180588:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:39:39 maxim-TM1701 org.gnome.Shell.desktop[1605]: [12108:1:0120/183939.181033:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:39:43 maxim-TM1701 org.gnome.Shell.desktop[1605]: [12108:1:0120/183943.121708:ERROR:child_process_sandbox_support_impl_linux.cc(81)] FontService unique font name matching the request did not receive a response.
Jan 20 18:39:45 maxim-TM1701 org.gnome.Shell.desktop[1605]: Fontconfig error: Cannot load default config file
Jan 20 18:45:05 maxim-TM1701 CRON[12367]: (root) CMD (command-v debian-sa1 > /dev/null && debian-sa1 1 1)
April 4th 20 at 13:03
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