OCR runs DOZENS of Tesseract instances on DUAL core CPU on Linux freezing system(x86)

[Heavygrass]

Hi!
Choosing Tesseract 5 in OCR on Linux (x86) I observe SubtitleEdit runs DOZENS of Tesseract instances on DUAL core CPU on Linux freezing the system.

One might argue about the benefits of hyper-threading, but clearly there's no sense to run more than 4 instances at most on DUAL CPU.

Examples:
ps -aux | grep tesseract| wc -l
77
ps -aux | grep tesseract| wc -l 48
ps -aux | grep tesseract| wc -l
75
ps -aux | grep tesseract| wc -l 40
ps -aux | grep tesseract| wc -l
15
ps -aux | grep tesseract| wc -l
14

Also checked it manually.

How to reproduce:

1. Open .sub (with subtitle images).
2. Choose 100 or more lines of subtitles
3. Right click & choose "OCR selected lines".

i5-3320M.
Is there a way to limit # of Tesseract instances on Linux?

I run portable SubtitleEdit 4.010 with mono as officially advised.
Thank you.

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Mono packages:
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6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-corlib4.5-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-corlib4.5-dll/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-cscompmgd0.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-csharp4.0c-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-custommarshalers4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-data-tds4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-db2-1.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-debugger-soft4.0a-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-http4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-i18n-cjk4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-i18n-mideast4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-i18n-other4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-i18n-rare4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-i18n-west4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-i18n4.0-all/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-i18n4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-ldap4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-management4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-messaging-rabbitmq4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-messaging4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-microsoft-build-engine4.0-cil/noble,noble,now 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libmono-system-reactive-observable-aliases0.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-reactive-platformservices2.2-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-reactive-providers2.2-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-reactive-runtime-remoting2.2-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-reactive-windows-forms2.2-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-reactive-windows-threading2.2-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-reflection-context4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-runtime-caching4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-runtime-durableinstancing4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-runtime-serialization-formatters-soap4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-runtime-serialization4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-runtime4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-security4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-servicemodel-activation4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-servicemodel-discovery4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-servicemodel-internals0.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-servicemodel-routing4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-servicemodel-web4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-servicemodel4.0a-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-serviceprocess4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-threading-tasks-dataflow4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-transactions4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web-abstractions4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web-applicationservices4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web-dynamicdata4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web-extensions-design4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web-extensions4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web-http-selfhost4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web-http-webhost4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web-http4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web-mobile4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web-mvc3.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web-razor2.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web-regularexpressions4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web-routing4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web-services4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web-webpages-deployment2.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web-webpages-razor2.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web-webpages2.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-web4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-windows-forms-datavisualization4.0a-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-windows-forms4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-windows4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-workflow-activities4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-workflow-componentmodel4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-workflow-runtime4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-xaml4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-xml-linq4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-xml-serialization4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system-xml4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-system4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-tasklets4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-webbrowser4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-webmatrix-data4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-windowsbase4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] libmono-xbuild-tasks4.0-cil/noble,noble,now 6.8.0.105+dfsg-3.6ubuntu2 all [installed,automatic] 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