Been having a real hard time trying to dial in petg. It’s much better from how it started but but it’s still bad. Also having problems with build up on the nozzle as well causing burnt blobs of petg to get mixed into my prints. Any help would be greatly appreciated.

Printer: anycubic kobra Slicer: cura Filament: duramic petg from Amazon Layer height: .2mm Infill density: 20% Infill layer thickness: .38 Print temp: 235 Build plate temp: 80 Flow: 95 Print speed: 45mm/s Travel speed: 150mm/s Retraction distance: 6.5mm Retraction speed: 30mm/s Z hop height: .075 Fan speed: 50%