You could have a load of background apps running? I recently upgraded from Win 7 to Win 11 (lol), and my new Win 11 PC had a ton of stuff running in the background, took a little bit of time to turn all the needless stuff off in the settings and went from about 70/80 fps to around 150, sometimes 250 fps on some maps. :)
that's why I keep you as an admin so you can give me advice and not fight with everyone..
thanks for the screenshot, I have it but I don't remember which folder holds the most players