@apatrida When I say slow, it is at startup when used for the first time because the lib is big, generate GC pressure, etc.
Also I think it is a shame that kotlin reflect alone is 2 Mb while kotlin stdlib is less than 1 Mb while. In Spring we just need finding primary constrctors, null safety of params + return value and get parameter names. It is insane to need 2 Mb for that.