Has Moffett engine been stealth nerfed? Also, shells not working in multiple matches

Has anyone else noticed that the Moffett engine got nerfed? The ship is very sluggish now and it takes a long time to reverse course or start going from a stop. Played enough matches to see the difference. Is this yet another stealth nerf of a premium vehicle? gg
Also, every number of matches my shells stop working while I get pummeled to death by other destroyers with few salvos. Some matches I’m able to kill Prince Eugens from a long distance when they are not paying attention, but in another match I have a problem penning a destroyer broadside? What gives?
What is the point of playing this Cotton Ball Thunder?