Topic: KISSlicer profile
I found out how to get to the KISSlicer profiles. Unzip and save the .ini files to the same folder as the KISSlicer.exe. If you already have ini files in there, back them up, this will probably overwrite settings that you already have.
Flow Tweak is equivalent to Extrusion Multiplier, so yours might need to be slightly different. Use these as a starting point, and tweak as needed.