What do you mean by “not optimized enough“? Binaries created with Free Pascal Compiler are very small, compilation time is super fast and runtime performance was never an issue for the typical system/userland programs. I think in many ways on par or ahead of other mainstream system programming languages.

Additionally, it eventually shared the same backend with Borland C++, and nowadays C++ Builder.

Also Embarcadero has also adopted LLVM, while still having fast build times.