I optimized my game but there is no change in terms of performance nor graphics quality, what went wrong?

In most cases, this is not an issue, but rather a system-specific problem. What does this mean? Simply put, if the system is not already capable of running the game at all, Low Specs Experience will not magically remove all the restrictions. If the system is being bottlenecked by the processor – Low Specs Experience also rarely can do anything in this regard. If the processor can not prepare enough frames for the graphics card to render, more framerate is useless due to this limitation.