FPS drops while using Vyron ult grenade launcher skill

[bepis man]

When i use the grenade launcher for the first time in match while i fight players my fps drops to like 3fps and it's so weird and unplayable.
Using this skill has no effect when i'm out of combat.
I couldn't find any info about this problem.
Does anyone experienced something like that?

[Mr.MeowMeowツ]

I play Delta force normally, every 10 seconds or so I get FPS drops that go down to 30 fps, then 4 seconds later I have my stable fps again, I've read that many other people have the same problem with Delta, it repeats itself

[manu450]

Same issue. Stopped playing until they fixed this slumber.