Why are you making a PS3 emulator?

Won't enable games to be more playable if libgcm commands aren't further implemented, since the majority of games need them to the fullest extent as on a real PS3. Speed increases would help but the inevitable standstill has been reached and output is being hindered because of this (e.g. textures, unimplemented opcodes and the memory manager has issues as well that causes many games to crash).

Although that's true, try picturing the fate of the emulator in a more distant future. The more we optimize now, the easier it will be to adapt our code.
Things like libgcm and SPURS are a priority inside the overall context, but our current memory handling system is very poor and it's being an obstacle to properly advance in those areas.
Then again, for a better memory system we also need a reliable interpreter (one that hurts the CPU as little as possible).
With those done, we can then safely focus on different features with less room for unexpected and buggy behavior.

We're definitely not on a standstill, but, in my opinion, this is a good opportunity to focus on some necessary optimizations before getting into more advanced areas.
I've suspend work on SPURS in favor of an interpreter redesign and memory management improvements.