Wrong time estimation when using Feed Rate Modifier / Speed Tuning

[Alwinator]

Describe the bug
The print time is perfectly accurate when I do a normal print. However, when I use the tuning speed option in the OctoApp which is equivalent to changing the Feed Rate Modifier in Octoprint (see screenshot below), the time stays the same. In my case that is ~7:45, however since I changed the speed to 150% from the beginning, the time should be ~5:10. On the printer the time estimation is correct.

OctoPrint Feed Rate Modifier Screenshot

Prusa i3 MK3 Display (Time Estimation, Speed)

To Reproduce
Steps to reproduce the behavior:

1. Start any print in OctoPrint
2. Check time estimation (correct)
3. Change printing speed
4. Check time estimation (wrong)

Expected behavior
When changing the speed the printing time should be adjusted. In my case, the 7:45 with 150% speed should change to 5:10 (7.75 / 1.5 = 5.16)

OctoPrint Version:
1.10.3

PrintTimeGenius Version:
2.3.3

If relevant, upload the PrintTimeGenius log and any problematic gcode files (you might need to rename the files). This is really important. I probably can't help you without this.

plugin_PrintTimeGenius_engine.log

Motor Block_0.3mm_PLA_MK3_7h47m.gcode.zip

[eyal0]

The time to print the file is calculated and stored when the file is uploaded. It's probably not possible to rescan the file each time you change the speed! However, maybe the existing speeds could be updated? The problem is that, when you update the speed to 150%, it's not like all of it gets 50% faster, right? The time to heat up the print bed stays the same and the time to make fast motions stays the same, it's just the extruding motions that change, right?

If there is a way for PTG to know about the new feedrate, I suppose that it could just scale all the times by that amount.