Help me dial in this new printer!

I just purchased a Bambu H2S. Its been four days and I have buyer's remorse. As a side note, I've been in the 3d printing world for over a decade. Started off with a Wanhao Duplicator. Got a second. Upgraded to a Flashforge Guider II. Then Peoply Phenom. I initially printed several rings to go over the cardboard spools for the inland PETG I'm using. They turned out great.

Then I got to the reason I purchased this printer. I printed one *decent* part. (it had some pitting along the edges, I'm not sure if I had supports there or not.) Since then, I've had all failed prints. I even had the Extruder Motor Overloaded. Took apart the extruder and ended up having to switch to the spare hot end. Started printing again. But still, all failed. Yes, I have dried the PETG for 12 hours at 65 in the AMS. the prints initially adhere, but the the parts are soft and as it moves up the layers shift and it misprints. (the trees for the supports look beautiful!). I've seen absolutely perfect prints on this sub. Here are the settings I'm using, please help me fix this before I drop this printer back off at Micro Center. I can upload the 3mf file somewhere if that would help.

LAYER & QUALITY

Layer Height: 0.08mm

Top/Bottom Layers: 7 layers

Wall Loops: 2 walls

Infill Density: 20%

Infill Pattern: Gyroid

SPEED SETTINGS

Outer Wall: 30 mm/s

Inner Wall: 100 mm/s

Top Surface: 80 mm/s

Initial Layer: 30 mm/s

Bridge: 50 mm/s

Travel: 500 mm/s

ACCELERATION

Default: 4000 mm/s²

Outer Wall: 2000 mm/s²

Top Surface: 2000 mm/s²

Initial Layer: 500 mm/s²

SUPPORT SETTINGS

Support Type: Tree (auto)

Threshold Angle: 55°

Top Z Distance: 0.16mm

Bottom Z Distance: 0.08mm

XY Distance: 0.35mm

Interface Top Layers: 4 layers

Interface Bottom: 2 layers

Interface Pattern: Rectilinear

Interface Spacing: 0.3mm

Support Speed: 150 mm/s

Interface Speed: 80 mm/s

TEMPERATURE

Nozzle: 245°C

First Layer Nozzle: 250°C

Bed: 70°C

Chamber: 45°C

COOLING

Fan Range: 40% - 90%

No Cooling First: 3 layers

Overhang Fan Boost: Enabled (90%)

Slow Down Layer Time: 12 seconds

ADVANCED QUALITY

Wall Sequence: Inner-Outer-Inner

Smooth Speed: Enabled

Smooth Coefficient: 0.5

Flow Ratio: 0.95

Elephant Foot Comp: 0.15mm

RETRACTION

Retraction Length: 0.8mm

Retraction Speed: 30 mm/s

Z-Hop: 0.4mm (Auto Lift)

FIRST LAYER

Height: 0.08mm

Speed: 30 mm/s

Line Width: 0.5mm

Acceleration: 500 mm/s²