I am currently working on the filament change g-code, there is lot of things that can be done :
- increase movment speed
- remove useless move (for example the filament is wiped before cut, wich is useless)
- increase the purge speed of the filament (x3 and then maybe use less purge volume)
Also, as you pointed @ThanksForAsking ,I am testing/verifying if purging faster may requiere to purge less