@gerograph
PowerPC E-UAE is running slow, because of interpreting 680x0 one instruction at the time.
WinUAE (AROS/Windows) supports 680x0 to x86 translation (recompilation on the fly) JIT.
JIT is not yet fully supported on E-UAE / PowerPC.
There is on going project to make JIT, (CPU emulation) faster.
For programs its better to forget about E-UAE/RunInUAE and just run the applications directly on AmigaOS4.x / Petunia JIT is parity fast.
Its just a matter of time before E-UAE / PowerPC gets JIT, Álmos Rajnai is working on it read the blog, and donate money.
http://euaejit.blogspot.no/