Can you give an example of something before and after your compressor, along with the settings you used?
I'm definitely no expert at compression, so please take my ramblings with a grain of salt. My first thought is that maybe your attack parameter is too slow.
A fast attack and fast release could muffle the "snap" or "impact", usually not what people want from a compressor. On the other extreme, a long attack would cause the compressor to reduce gain long after the core of a short hit, but the gain reduction would then end up muffling the room/atmosphere tail that happens after that. That would have the effect of actually reducing the atmosphere.
There's usually a middle ground that is unique to the sounds you are compressing, where a medium fast attack can take effect after the initial transient of the sound, but a medium release starts to bring back the gain shortly after that, while the room tail is just starting to decay. and if you can manage to find the right settings, the sound can be both impactful, yet the atmosphere at the end appears to be enhanced because of the way the gain is increasing back to normal counteracting the room decay.
This kind of trick is more obvious when done on individual instruments, but it can still have a nice subtle effect on a full mix bus. For a full mix bus, you could try using a gentler ratio, a lower threshold, softer knee. The gentle ratio and softer knee help reduce the aggressiveness of compression while the lower threshold makes the compression apply to more of the song. I also have had good results with a fast attack combined with lookahead, so that the initial attack is shifted a bit earlier. If the attack can reduce gain before the transient actually happens, the compression can be more transparent ok the attack - but the magic of the release lining up with the room decay can still be there.
Anyway, just want to emphasize, I'm not that experienced with compression. Would be great if others can chime in with more thoughts on bus mix compression, Beat included.