Bueno ya vi que el problema esta reconocido por embarcadero.
https://quality.embarcadero.com/browse/RSP-30910
We are incorporating some the the IDEFixpack speed improvements into the compiler, but this will be taking time, as need to make sure all the fixes are safe.
The compiler can be expected to slow down over its generations as more language features are add which means it needs to spend more time parsing and generating code, another factor is that the frameworks and of course OS are also increasing in size.
Muchas gracias.