The compressor is mathmatically inferior im every way to the modulator. The ttk, dps, dps with headshots, max kills per mag, max kills per kag with headshot are all lower. The range is only very mildly better but with more bullets and faster firing rate the modulator just seems more concistamt at range too though thats largely anecdotal. I think it would be better if the compressor had higher headshot damage to lean more into the slow but steady style the weapon seems to be leaning towards but if nothing else it needs SOMETHING because as it stands the weapon is just outright worse. I did the math though I won't bore you with it all and instead give a condensed version. This is all according to the stat sheet in game for some things so if thats wrong then oopsy daisy.
In order it will be dps, dps headshot, max kills per mag (no extended mag), max kills per mag (extended mag)
Compressor: 163.5, 208, 5, 6 (and about 3/4)
Modulator: 166.75, 222, 6 (and about 3/4), 7 (and about 3/4)

Anything range related is largely guesswork but in my testing at some arbitrary distance it takes the compressor 12 shots and the modulator 14 but since the modulator fires faster the modulator takes about 1.293 compared to the compresssors 1.259 with extended mag the results are about the same with 6 shots compressor 8 shots modulator.

I enjoy this game and I wanted to lvl 13 every gun, this gun specifically has made me regret that, nonetheless keep up the good work :)