In-game mouse laging on League of Legends

Hi everyone,
Just installed League of legends on my Debian(wheezy). Everything is going perfectly, i can even play with high graphics know!!! Only problem left is that my mouse movements are lagging.
First of all he never moves, its more like if he teleports little distances over my screen.
Second he just sometimes freezes between 2-4 seconds often after i clicked but also just randomly.
As you can understand its really difficult to land skill shots and doing a tower dive when your mouse stay blocked in the left corner so you go look at the enemy nexus doesn’ t make it a lot easier
By the way the freezes can be anywhere on the screen.

I really hope someone can help me with this!!!
Thanks in advance.