The Ender 5 Pro is running a lower filament temperature what is the nozzle temp @ ?
Do you have a 0.20 nozzle by chance ?
Did you use the variable layer height option already on this part ?
If you only have .4 nozzle you can try something like this and see how it works out.
Let’s see if you can get the quality needed on this part you are the 3D test pilot
E5 was running 205 nozzle temp. I have the 0.4mm nozzle on both printers.
I think you’re onto something here. I combined your speed and line width settings with variable layer height and the corner in question is much sharper (see image).
What else can you think to change to get it even sharper than this?