長文のページをVisualEditorで保存しようとするとタイムアウトしてしまう

Question

実現したいこと

• 情報量の多いページでも、VisualEditorでタイムアウトさせずに書き込みさせる

前提

MediaWiki 1.35をインストールしてみました。
このバージョンは、VisualEditorとParsoidを内包しているので簡単に導入できます。
VisualEditorの「編集」で情報量の多いページを保存しようとすると、60秒前後でタイムアウトのエラーが表示されます。
情報量の少ないページは、VisualEditorの「編集」でもちゃんと保存できます。
「ソースを編集」も情報量が多くてもちゃんと保存できます。

発生している問題・エラーメッセージ

エラーが発生しました…
サーバーが決められた時間内に応答しませんでした。

該当のソースコード

<?php
# This file was automatically generated by the MediaWiki 1.35.10
# installer. If you make manual changes, please keep track in case you
# need to recreate them later.
#
# See includes/DefaultSettings.php for all configurable settings
# and their default values, but don't forget to make changes in _this_
# file, not there.
#
# Further documentation for configuration settings may be found at:
# https://www.mediawiki.org/wiki/Manual:Configuration_settings

# Protect against web entry
if ( !defined( 'MEDIAWIKI' ) ) {
	exit;
}


## Uncomment this to disable output compression
# $wgDisableOutputCompression = true;

$wgSitename = "ニッチでドワーフなwiki";

## The URL base path to the directory containing the wiki;
## defaults for all runtime URL paths are based off of this.
## For more information on customizing the URLs
## (like /w/index.php/Page_title to /wiki/Page_title) please see:
## https://www.mediawiki.org/wiki/Manual:Short_URL
$wgScriptPath = "/nd";

## The protocol and server name to use in fully-qualified URLs
$wgServer = "http://localhost";

## The URL path to static resources (images, scripts, etc.)
$wgResourceBasePath = $wgScriptPath;

## The URL paths to the logo.  Make sure you change this from the default,
## or else you'll overwrite your logo when you upgrade!
$wgLogos = [ '1x' => "$wgResourceBasePath/resources/assets/wiki.png" ];

## UPO means: this is also a user preference option

$wgEnableEmail = true;
$wgEnableUserEmail = true; # UPO

$wgEmergencyContact = "www-data@localhost";
$wgPasswordSender = "www-data@localhost";

$wgEnotifUserTalk = false; # UPO
$wgEnotifWatchlist = false; # UPO
$wgEmailAuthentication = true;

## Database settings
$wgDBtype = "mysql";
$wgDBserver = "localhost";
$wgDBname = "ndwiki";
$wgDBuser = "root";
$wgDBpassword = "Pineapple";

# MySQL specific settings
$wgDBprefix = "nd_";

# MySQL table options to use during installation or update
$wgDBTableOptions = "ENGINE=InnoDB, DEFAULT CHARSET=binary";

# Shared database table
# This has no effect unless $wgSharedDB is also set.
$wgSharedTables[] = "actor";

## Shared memory settings
$wgMainCacheType = CACHE_NONE;
$wgMemCachedServers = [];

## To enable image uploads, make sure the 'images' directory
## is writable, then set this to true:
$wgEnableUploads = false;
#$wgUseImageMagick = true;
#$wgImageMagickConvertCommand = "/usr/bin/convert";

# InstantCommons allows wiki to use images from https://commons.wikimedia.org
$wgUseInstantCommons = false;

# Periodically send a pingback to https://www.mediawiki.org/ with basic data
# about this MediaWiki instance. The Wikimedia Foundation shares this data
# with MediaWiki developers to help guide future development efforts.
$wgPingback = true;

## If you use ImageMagick (or any other shell command) on a
## Linux server, this will need to be set to the name of an
## available UTF-8 locale. This should ideally be set to an English
## language locale so that the behaviour of C library functions will
## be consistent with typical installations. Use $wgLanguageCode to
## localise the wiki.
$wgShellLocale = "en_US.utf8";

## Set $wgCacheDirectory to a writable directory on the web server
## to make your wiki go slightly faster. The directory should not
## be publicly accessible from the web.
#$wgCacheDirectory = "$IP/cache";

# Site language code, should be one of the list in ./languages/data/Names.php
$wgLanguageCode = "ja";

$wgSecretKey = "949d5edba1c638abc55e86372e81561bfa6f0227b8e4eda246a4f2ad872053eb";

# Changing this will log out all existing sessions.
$wgAuthenticationTokenVersion = "1";

# Site upgrade key. Must be set to a string (default provided) to turn on the
# web installer while LocalSettings.php is in place
$wgUpgradeKey = "973eba3160b29a48";

## For attaching licensing metadata to pages, and displaying an
## appropriate copyright notice / icon. GNU Free Documentation
## License and Creative Commons licenses are supported so far.
$wgRightsPage = ""; # Set to the title of a wiki page that describes your license/copyright
$wgRightsUrl = "";
$wgRightsText = "";
$wgRightsIcon = "";

# Path to the GNU diff3 utility. Used for conflict resolution.
$wgDiff3 = "/usr/bin/diff3";

# The following permissions were set based on your choice in the installer
$wgGroupPermissions['*']['edit'] = false;

## Default skin: you can change the default skin. Use the internal symbolic
## names, ie 'vector', 'monobook':
$wgDefaultSkin = "vector";

# Enabled skins.
# The following skins were automatically enabled:
wfLoadSkin( 'MonoBook' );
wfLoadSkin( 'Timeless' );
wfLoadSkin( 'Vector' );


# Enabled extensions. Most of the extensions are enabled by adding
# wfLoadExtension( 'ExtensionName' );
# to LocalSettings.php. Check specific extension documentation for more details.
# The following extensions were automatically enabled:
wfLoadExtension( 'CodeEditor' );
wfLoadExtension( 'VisualEditor' );
wfLoadExtension( 'WikiEditor' );


# End of automatically generated settings.
# Add more configuration options below.



$wgHTTPTimeout = 600;          #これ大事
$wgAsyncHTTPTimeout = 600;
$wgHTTPConnectTimeout = 600;
$wgHTTPMaxTimeout = 600;
$wgHTTPMaxConnectTimeout = 600;
$wgHTTPImportTimeout = 600;
$wgExtensionInfoMTime = 600;
$wgFeedCacheTimeout = 600;

試したこと

• LocalSettings.phpで怪しそうな設定を600にした(上記ソースコードの末尾参照)
• phpのmemory_limitを1024にした
• phpのupload_max_filesizeを1024にした
• phpのpost_max_sizeを1024にした
• phpのmax_execution_timeを600にした
• phpのmax_input_timeを600にした
• phpのopcache.force_restart_timeoutを120にした
• 設定をいじる度にsudo systemctl restart apache2
• MySQLの怪しい設定を変更した

mysql> show global variables like '%timeout%';
+-----------------------------------+----------+
| Variable_name                     | Value    |
+-----------------------------------+----------+
| connect_timeout                   | 180      |
| delayed_insert_timeout            | 300      |
| have_statement_timeout            | YES      |
| innodb_flush_log_at_timeout       | 1        |
| innodb_lock_wait_timeout          | 500      |
| innodb_rollback_on_timeout        | OFF      |
| interactive_timeout               | 28800    |
| lock_wait_timeout                 | 31536000 |
| mysqlx_connect_timeout            | 180      |
| mysqlx_idle_worker_thread_timeout | 600      |
| mysqlx_interactive_timeout        | 28800    |
| mysqlx_port_open_timeout          | 0        |
| mysqlx_read_timeout               | 300      |
| mysqlx_wait_timeout               | 28800    |
| mysqlx_write_timeout              | 600      |
| net_read_timeout                  | 300      |
| net_write_timeout                 | 600      |
| replica_net_timeout               | 600      |
| rpl_stop_replica_timeout          | 31536000 |
| rpl_stop_slave_timeout            | 31536000 |
| slave_net_timeout                 | 600      |
| ssl_session_cache_timeout         | 300      |
| wait_timeout                      | 28800    |
+-----------------------------------+----------+
23 rows in set (0.00 sec)

補足情報（FW/ツールのバージョンなど）

Ubuntu 22.04.2 LTS
MediaWiki 1.35.10
PHP 7.4.33 (apache2handler)
MySQL 8.0.33-0ubuntu0.22.04.1
VisualEditor 0.1.2