I don't know why even with 800 dpi on my mouse I need at least a sensitivity of 1 to move as fast as someone who has a sensitivity of 0.3. So I don't know the problem is with my mouse or the game.
Hey, I'm having this same exact issue, I have my dpi at 800 but it literally barely moves until I put my sens at 1.0 did u get a fix on this?