You're talking about the default Laser Rifle right?  

I was thinking it should have a capacitor that drains. Then you have to let it recharge to fire.  The most lethal aspect of the Laser Rifle is that you can spam it constantly.  Get two of you together spamming down a hallway and it's really tough to beat or even survive.  If you could only spam like 5 or 8 shots before it's 'drained' then have to let it recharge it would be a big improvement to the balance of this weapon.  

There seems to be some crazy FPS 'lag' lately.  If I go full screen it fixes it... then it creeps back in somehow... I go out of full screen and it's OK for a while.  Not sure what's triggering it... maybe deaths?  

Agreed... it's a total cheap shot BS move.