And what type of export setting are you using i.e. fast bounce etc.?
You could try to experiment with some things by making a second version name for your whole project and put that aside while you experiment.
Try bouncing your midi drums to audio track and guitars through sims to audio tracks >>>then export and see what you get.
The beauty of the DAW world as opposed to tape is you are afforded the opportunity to do some non destructible problem solving experiments.