Driver settings of the mouse? or of my video card?. I installed another game, and mouse worked good, its only in my et.
I think video card driver settings,Threaded optimization in particular
I wonder why people always suggest to reinstall ET... dudes, ET is not Windows or some other crappy and huge convoluted piece of junk, it's much much simpler.
The only code there is in ET.exe and the mod dlls (but on pure servers pk3 need to be the same as the server ones)
A reinstall just copies the files again, if the executables aren't corrupted (which is almost never the case) I don't see how this could help... data files can't create fps lags. It's either config issue, or it's not ET and you have to look elsewhere (like in this case imho).
If you just have to go back to default config, there is one in etmain folder, or you can do a:
no need to reinstall the whole thing to reset a config lol.