Linux or Windows for citra?

Opengl 3.3 drivers aren’t released for my windows PC yet even though it supports it but There are opengl 3.3 drivers for Linux . so im gonna change my os but I wanted to know if there is a performance,speed… difference between the windows and Linux version of citra

Not really.
I guess it depends on what kind of hardware you have and how good the Linux / Windows support is.