Hello everyone!

I have been experiencing a persistent issue for quite some time now. Whenever I print larger designs, the quality significantly deteriorates the higher it is printed. As you can observe in the picture, the top part appears distorted and it seems like the printhead fails to align properly with the underlying layers. Interestingly, when I print a single item, the quality is perfectly fine.

I have already examined and ensured proper tension in all the belts. I have also checked the hotend and cooling system, which are functioning correctly. Additionally, the spindles appear to be in good condition as well.

Any help is appreciated!