Different print times with same settings but different nozzle (for single wall object)

[Consti3D]

I'm printing test cubes to find settings for LW-PLA. It is a thin wall cube with single layer. Using the same settings except for the nozzle size of course, including:

• Print speed
• Layer height

For my uderstanding this should lead to the same print time, because of the same settings except for nozzle size. Since it is a single wall it should come to the same no? Do I have a thinking error?

Application Version
Cura 5.4

Platform
Windows

Steps to Reproduce
Load project file

Actual Results
calculated print time for 0,4 nozzle is 36 minutes, for 0,6 nozzle it is 25 minutes

Expected results
same print time expected

Additional Information
test_tower_lwpla.zip