Slicing issues

I’m using an Ender 3 Pro V2 SE and having some horrible problems with it at first I thought it might be a hardware issue but using slicer version 1.2.1 I am able to get very clean print although they are exceedingly slow to come out using cruelty print 4.3 and 5.1 I get the following results:

Creality Slicer 1.2.3 2H9M Quality is excellent
Creality Print 4.3 1H 23M Quality is trash
Creality Print 5.1 1H 25M Same trash

Needless to say two of these are scrap. Is there a current slicer or print program I can use to fix this?

How do I up the feed rate for this printer? Either in the software or in the control panel?