How to set the speed for a given filament?

Hi
Thanks for those settings. I am using the Bambu slicer but did try the Orca one. Made no difference.
However, I decided to start from scratch here, and bought some fresh PETG filament from Sunlu. I also bought a Inovation food dehydrator and just dried it at 65C for 16 hours. I am now trying a print and so far it looks promising.
Next I will do the Calibration in Orca and see the final results. I will report back.
Thanks, All!