Stability and performance are the first two things to be looked at during polishing. It involves many procedures and techniques that might keep the engineers busy for a while, but the designers can spot moments or parts of the game that runs a bit too slow or have glitches. Polishing stability and performance means avoiding crashes, glitches, improving and stabilizing the FPS (frames per second), and reducing the functional bugs (even the smallest ones) to zero or as close to zero as possible. It also includes monitoring and optimizing the use of CPU and GPU and the memory usage.
It is worth noting that, even if this sounds like a very technical activity for engineers, sometimes it could take only a designer to solve ...
