Playing this brings back memories of the 90s with the old N64, fortunately still have the N64 and cartridge, UNfortunately however, this game does not have the ability to use an xbox-PC controller as a ingame "joystick" function.. Back to basics with joy2key, but it wont be the same feel though, and trying to find a suitable N64 emulator with the Rogue Squadron rom, seems rare to find, they always end up in fatal graphical errors, regardless what rom version it was, or emulator with multiple tries at graphic configs.. This will do, with Joy2Key, thanks!
How to make mouse more smooth i have no idea.