Hello. I noticed that when there are a lot of tracers, when a lot of bombers start shooting, then the FPS sits out. I have the impression that BAT contains one of the mods for tracer, in which the textures of the tracers are too heavy.
One of the tracer effects caught my eye, and the textures in it were too heavy in size. (see screenshot)
If I'm not mistaken, then all this is a plus, and in and toga, it requires a lot of RAM. From my own little experience, I know that in fact it is unnecessary to compose the textures of things like tracers to have a high resolution quality. The optimal size is from a few bytes to a couple of kilobytes.
My suggestion is to make sure how much the texture of the tracers in the BAT weighs, and if some of them weigh a lot like in the screenshot, then change their size, I think that this will increase the FPS. Of course, I understand that almost everyone has powerful PCs, and they may not notice any problems with this, but there are still users who have not very powerful PCs, and this would be useful for them.