I would say you are still going far too quickly. Slow it down by 30 - 50% and the quality will improve. The line is probably due to incorrect retraction settings - increase it a little bit.

The filled in hole is due to lack of support material - and going too fast! Bridges (Material over fresh air) are tricky and it's normally better to put in some removable support to keep the holes clear.

The top roughness is also due to excessive speed. Slow this right down and things will improve.

(Did I mention, slow things down!)