In single player i have a good frame rate, above 55 fps and gpu usage is steady at 98-99%.

Multi on the other hand, gpu usage is at 50-60%.It has to be the cause for such low fps, i can′t get more than 30 fps, used to get more than 55.

Reinstalling the game and deleting files of the game doesnt′solve anything.

Please spend some time and read the forum, you will notice that there are dozens threads about that issue and you did not have to make another one.

Please spend some time and read the forum, you will notice that there are dozens threads about that issue and you did not have to make another one.

My bad, didn′t saw it.
Just saw a thread suggesting to reinstall the game and that the game would get fixed.

It won't problems are caused by patch 1.3 we need to wait for Crytek to solve the problem.