Sounds like my old ps3 CECHE01 But this is full software emulation on a jailbroken one for your case
Which has not done any better one either of my ps3s.
Short answer is no but sometimes you can get lucky with the ark elevator and it will work or maybe can get it to glitch back up. I've also had the elevator get stuck in a constantly moving state but 90% of the time my old and current ps3 will freeze.
My jailbroken slim ps3 straight up shuts off when I touch ishras ark elevator btw
on disc or image file.
If you can get past Ishra's ark then you will get stuck at the first switch on maze of memories
I don't know how to glitch by that yet. You are better off importing a game save and skipping those 2 visions. If I am not mistaken Ark revisited has the same crap.
There are some early ps3 with true hardware compatibility with ps2 games and those do correctly work with Klonoa 2.. those are models CECHA00 CECHB00 CECHA01 CECHB01. A00 B00 are early japanese ps3s and A01 B01 are US. They usually run $200 or more a lot of times.
Sorry I don't have much good news but that is my experience so far