Here is a post showing how sluggish the Bolter is compared to the Plasma Gun.
The Plasma Gun is PERFECT, it does not need to be changed at all, it has a long reload and the overheat mechanic keeps it in check, but the quick draw-time makes it inherently better than the Boltgun.
Finally, a clip showing an example of a Situation that the Boltgun would not be able to deal with NEARLY as well as the Plasma Gun.
Boltgun, Helbore, Autoguns and Lasguns all need to be less sluggish and the re-racking on equip animations need to be scrapped.
Plasma Gun is perfect, it needs 0 changes and it’s not Overpowered.