igot lag on after updating to 4.4

[sarpon]

I have got lagged when scrolling with applications change apps close applications after updating my lenovo s580 from 4.3 to 4.4.2 my build number is s580_s110_141216_row so is there any solution for my problem
and i have rooted my phone so help me please

 

[sarpon]

or can i downgrade my 4.4 to 4,3 ?