I think you just need some better crankcase ventilation, a supercharged engine pulls in a lot of air, air has moisture, all engines have some blowby, which contains moisture. First thing to check is how much blowby do you have? A cylinder leak test, and if you have access to one they make blowby testers as well. You can build one.

https://www.sbmar.com/articles/measuring-blow-by-the-real-test-for-internal-engine-condition/

I have seen many supercharged engines that run good, but had excessive blowby and slobbered a little.