Yes, TurboDelphi is the successor of the Community Edition and thus totally free to use. I would recommend the later one tho, as TurboDelphi is very old.
.NET is not native code. It gets compiled to an intermediate language which is then JIT compiled during execution. That of course takes more time than executing native code in the first place.
A new keygen was uploaded in this board:
https://www.board4all.biz/threads/radstudio-tokyo-10-2-update-2-keygen-10-2-2.692704/
I still dont have access to the links sadly. Someone else might have an account for this board.