Minor Projectiles-Flashlights Lag

[Atlz90]

Each time someone fires a taser/laser/any projectile that emits light OR has a turned on flashlight in the hallway (lots of other static lights) my ping suddenly goes up to canbomb levels, screen freezes, and i get tased. This is a pretty old issue, i had it all the way from when i started playing SS13 - mid summer 2016 if thats going to help. So far im the only one who has serious lag with projectiles lighting/people running around with flashlights. Help?