Bystronic bysprint 3015 1/2" mild steel parameters

[Rog98]

Hi everyone, Im new to laser cutting and have been reading tons of threads on here since i started messing with the machine, so far ive dialed in all the parameters for mild steel from 10 gauge to 3/8" thick, but cant for the life of me get a clean cut out of 1/2". I got a pretty good cut going at the moment, but im getting a lot of cratering and dross on the bottom of the cut, does anyone on here have any parameters that i could try out? Any tips would be greatly appreciated too!
I will upload a picture of my current parameters, once again, i have no previous expierience with laser cutting, so if anything looks off, let me know.

 

[Rog98]

Here's a picture of the cuts im getting