Gaps in outer Perimeter / Uneven sticking Layers

[Demadig]

Hello,

I'm currently trying to tune my 3D Printer (it's a Sovol SV01 Pro) with the Superslicer Software.
When I printed the xyz-calibration-cube I noticed this weird and random pattern of uneven sticking Layers at the outer Perimeter at the beginning of the printed perimeter.
So I printed a Wall to understand the issue and tweak my settings.

Here are 2 Pictures of the Wall I printed:
Front Back

So what I can see from these pictures is, after the outer Perimeter starts to print (on the left of the Front-picture), the Layers are sticking together perfectly fine for about 1 cm and after that there are these weird and uneven gaps, which are forming for about 5 cm. After that the Layers are sticking together perfectly fine again. You can see on the backside, that the Layers are perfect aswell.

So I think my problem probably relates to some underextrusion after retraction (at the start of the outer perimeter), but I already tinkered with a lot of retraction settings in Superslicer and nothing prevented these gaps or improved anything. I really don't know what's the Problem and how to solve it.

Can anybody help me to understand what's going on in that area of uneven outer perimeter lines and give me a tip on how to solve this issue?

The zipped .3mf file:
Wall.zip