I could say this about a number of plugins, but I’m going to post it right here. So many “vintage” processors have that slight uptick in the high end. At the time, they sounded great because tape and tubes and transistors more often then not roll that high end off. They could make up a little of what was being lost. Which leads to this hint…
Be careful you aren’t putting a bunch of high end into your mix because you are using analog emulations (that reproduce this behavior). I think this is part of that “digital harshness” people talk about, and ironically it’s being caused sometimes by trying to recreate a “vintage” sound!