Please, this is a serious issue. I crashed several times just by being shot from Ray-guns, and when I don't, my game stutters when ray-gun projectiles are nearby.
Other people have the same issue like me, so it's not an isolated case. I also tagged /u/FoxhoundFPS on the matter (link), but I didn't get any response.
Please upvote for visibility, PC players are important too. :'(
EDIT: Sorry /u/FoxhoundFPS I forgot you replied here, just please be sure the devs are aware this is an important issue that should be taken care of, for the sake of us (few) PC players that still play. I provided proof in video so that they can acknowledge it's indeed a problem with Ray-guns.