Why opening several Subtitle Edit Windows on Windows 10 slows down...

[robena]

Question to the devs: why, on Windows 10, Subtitle Edit becomes so slow when multiple instance are running?
I have a 10 core Intel Core i9-10900X overclocked at 4.7 Ghz, with 128 GB memory, and when only 5 Subtitle Edit Windows are opened (to do 5 OCRs in parallel for example), every one runs 3 times slower, and all other Windows app are affected too.
That did not happen on Windows 7. I could open 24 Windows without any slowdown on a much lesser hardware.
When I switched from W7 to W10 (reluctantly, it's a piece of crap without a lot of third party apps to change it radically), I opened once by habit 24 Windows (a whole series to edit). The system was slowed to a crawl and I had to reboot!
I'm using 3.6.2, but it has always been release independent.

[johns0]

Look in task manager and see if it's subtitle edit slowing it down or something else,also try the newest version of subtitle edit.