Acceltra causing massive drop in frame rates

[Temp950]

I have a new PC that is pretty powerful, with a Geforce RTX2070 super, 16gb of DDR4 Ram and a Ryzen  7 3700x  8 core processor at 3.6 ghz. It usually runs warframe with no problem at 85fps with all the settings maxed out. But I noticed today that when the Acceltra was fired by someone on my squad, my frame rate plummeted to 45fps or so and stayed there till he stopped firing the gun. I haven't noticed this happening with any other weapon. Is this happening for anyone else or is something wrong with my card/drivers? My drivers are up to date as of a week or so ago.