Saw this on reddit, people been saying it helped them dramatically.

Hope it helps for you.

www.reddit.com/r/battlefield_4/comments/1puiok/getting_cpu_lag_in_battlefield_4_i_found_a_fix/

i, for one can state that by doing this, i now dont go from 60fps to 20 and back up to 60 every 3 seconds.

This post was edited by Neip on Nov 3 2013 10:31pm

mmm i recently used that utility to turn it back on

gonna have to redo that

hope it fixs this ish