Convert Mandala .PNG file into actual line art in affinity designer 2?

[lamalweisj]

So i have a bunch of mandala images in PNG format that look very good, but get very pixelated when putting them in Affinity Designer even after upscaling them.
I was wondering if there is a way to take those PNG images and kind of convert them in affinity designer into a line drawing? 
I would appreciate some help !
This is a example picture i wanna take and convert in affinity designer :

[loukash]

6 minutes ago, lamalweisj said:

if there is a way to take those PNG images and kind of convert them in affinity designer into a line drawing? 

In short:
No.

In long:
You need a third party application or web service that will trace/vectorize bitmap drawings.