try it by yourself and share your experience
while psx4m doesn't support all psx games correctly nobody can grant something more...

from http://a320.emulate.su/tag/psx4all/ i read that a320 port of PSX4ALL can read compressed(with speed decrease) and cutted(without some sounds\videos), so you can try

also psx4m 0.4.4 and psx4m-gui 0.4-3 already in devel
for me autoframeskip work's fine and very fast (without OC, with cyclemult 4 i get 60fps in some games(with sound, without sound lags) like nfs3hp)
also i send a pm for eq(russian symbian programmer,http://www.summeli.fi/?p=1912) to ask about 3d acceleration support (i can compile psx4m with pete's GPU plugin but it freese at start)