Comodo firewall, making GTA : Multiplayer lag.

Im new to the Comodo firewall and so for I like it, exept that it slows down my GTA-Multiplayer alot.
And this isnt small lagspikes or something, its constant lag, impossible to play like this.

So now I need to know if theres some settnings that i’ve possible missed? If so I’d appreicate if you let me know.

Thanks in advance