I do not have an Ender3.

It appear that you are having major problems with the Z-Axis movement.
One layer is too thin the next is too thick or missing as though the Z-Axis is being stuck then popping into place.

I would re-adjust the Z-Axis it could be that it is not square from right to left causing this sudden snapping into place.
The Z-Axis should move smoothly up and down, this is only a guess.
Please make a short video post it to a google drive like online share and supply a link so we can see.
Make sure that we can clearly see the Z-Axis movement, as we have already seen the results.