Impossible to print at low speed

Hello, I am looking for help.
I cannot print at less than 150mm because a strange pattern is printed.

I have already tried adjusting and loosening the belts and I cannot fix it.

It is driving me crazy and there is no alternative to printing at more than 150mm because of the detail of some parts and the PLA sold in my country is not high speed (i usually print at 60 or 100 mms)



Thank you all very much for your help.

@CREALITY There are several of us with the same problem, could you solve it?

Its making me crazy