Yeah, default controls are just barely functional. I just can't rely on using left shift on anything time-sensitive (for some reason, my left little finger is much less flexible than right one), and it's a dodge button, which here means the difference between life and death.
As for slimes, yeah, they're indeed good source of early farming, noticed that too; they're just as fragile as any other enemy, but much easier to manage.
Wasps, on the other hand... I'd probably need a save wipe, because I have the starting zone full of wasps, who stuff me full of eggs spawning more wasps faster than I can kill the old ones, and those persists after restart.