Planck/Lumo for actual projects are really slow and I don't know why (0.5s of startup time). For some reason, the REPL is fast, and I didn't investigate why REP

Planck/Lumo for actual projects are really slow and I don't know why (0.5s of startup time). For some reason, the REPL is fast, and I didn't investigate why REPL is fast and an actual project is slow.