1h13m prints take 1h52m after MK3S upgrade from 3.7.2 to 3.9.0. Why?
I have two Prusa MK3S printers. They were both printing gcode generated by PrusaSlicer. I had v3.8.x firmware on one printer and 3.7.2 firmware on another. Both printed within a couple of minutes of the PrusaSlicer estimated times.
I upgraded both to firmware v3.9.0 and now both printers take 50% longer to print. Both printers show estimates of 1h13m in PrusaSlicer and on the MK3S display. They both take 1h52m to print. Why? What happened? What do I need to change to get my pre 3.9.0 speed & efficiency back? I made no other changes and the machines are well maintained and in excellent condition. Hopefully there is some simple change my googling and search on this forum and Facebook Group didn't turn up.
1h13m print estimate in slicer
1h13m print estimate on printer
1h52m actual print time
