Prints look bad with new Toolhead

Hey guys, I changed my EVA Toolhead for a new Ratrig Toolhead with a Phaetus Rapido Plus 2.0 UHF Hotend and a LDO Orbiter Extruder V2.5. But since the new build I can't get any good print results out of it. Does anybody have an idea what I could do to improve the Quality? Thanks in Advance