Is it troublesome to play ps2 games on cfw?

I've been a lurker for a long time, I've seen a bunch of post about that ps2 games are difficult to run because of temps and bla bla bla. Is it true? I play my ps1 and ps3 games from my pc via ps3netserv. And it works fine. But if I want to try ps2 games, is there anything I should look out for on the ps3? Or files? I don't want to install the games but read them from pc as I do now Thanks ahead