Trying to improve my prints but there's so many directions to go.

So, it's been about two months now since I picked up a Kobra 2 Plus. To say that I'm addicted to 3D printing things is an understatement. I've bought so much random colors of filament that I'm sure I've already spent more on filament than the printer itself.

However, I'm not exactly seeing the improvements on getting my settings just right. As I've figured out, right out of the box isn't going to be perfect no matter what I think the auto tuning features might do. I've done a few first layer prints and adjusting nozzle z-height but really, the print bed in a bit inconsistent I think based on, certain areas are fine and others are not.

So I'm curious, what are some of the things that you all have done to adjust the printer? I've seen tutorials where people are adjusting knobs under their print beds but the Kobra 2 doesn't have those.

Oh also, should I print slower? The default speeds get me most of the way but does printing slower help that much?

I'm attaching some examples of things that have gone wrong.

Thank in advance!