It's already set to high priority.
modrei wrote:you might also want to try setting osu to high priority in task manager
Yes, I am. And as I said, I tried to play on Linux on which only Discord and Osu! were on.
modrei wrote:are you sure your system isnt downloading or installing (like windows update) anything?
I already did it, and everything is perfect. And my Linux was new, so there was nothing bad on it.
Namii Zero wrote:I think you should try the virus scan and try again, maybe the sudden lag due to virus or malicious code