One of the developers on the RPCS3 team, Alex Altea, dropped this useful comment on a Reddit thread, as well as a link to the source code for anyone with keen enough machine coding skills to help out...
"...there is still a long road to go until more complex games can be considered playable (regardless of the speed). Notice that this is running in a slow interpreter that is not optimized at all. RPCS3's author, [DH] is working on a PPU recompiler, though. That should give us another important speed-boost in the near future which will be appreciated by more "complex" games. 
"
"A lot of gamers originally thought that the complexity of the PlayStation 3's Cell architecture would have prevented it from being emulated; however, the emulation community has proven that the barriers put into public discussion threads are nothing more than thin text and unfounded fanboy fears. The reality is that the PlayStation 3 emulation is almost coming along faster than the Xbox 360 emulation progress.
News Source: http://www.cinemablend.com/games/PS3-Emulator-Can-Now-Run-Commercial-Games-62686.html
Reddit: http://www.reddit.com/r/emulation/comments/1zqns3/first_commercial_ps3_game_in_run_on_rpcs3/cfwgwrc
RPCS3: http://www.emucr.com/search/label/rpcs3
Legally, PlayStation Now coming soon to PS4: http://us.playstation.com/playstationnow/
