Thank you very much for the feedback! In the last few months I have been working hard to improve the entire structural part of the code, using many more concepts of Object Oriented Programming, Data Structure, Clean Code and Code Standardization, you can check in the development branch that CryBits is practically an engine completely new.
Currently the engine doesn't support any SQL database, it is basically a writing of .dat files, but in the near future I may migrate to some database.