I think I managed to baffle the filter quiet a bit. I brought some aquarium foam and cut it to size and shoved some in behind the intake and some into the outake. There is still a little bit of a currant, but the poor little guy isn't getting flung across the tank anymore and seems a lot happier.
Only now he likes to rest right over the intake. I thought maybe I hadn't slowed it down enough, but whenever I go to check on him, he freely swims away from it and, goes somewhere else for a bit, then comes right back to the intake and lies against it. He is picking some odd spots to chill out. I have a PH tag that is suction capped to the inside of the tank and he likes to wriggle himself inbetween that and the glass and just stare at me.
Couldn't find the accessories I was looking for today at the petshop, so he'll just have to wait a bit for me to get them online.