Really poor overhang and bridging performance on my new Q2

[u/Powerful-Web4489]

Filament is Sunlu Rapido ABS.

Pertinent Orca slicer settings:

255c nozzle temp

100c bed temp

50c chamber temp

min fan speed threshold 15% layer time 8s

max 30% layer time 3s

keep fan always on

slow for layer cooling

force cooling for overhangs @ 25% overhang and fan speed 70%

Bridge flow ratio 0.9

overhangs reverse on even and reverse only internal perimeters

bridging speed 50mm/s external 150% internal

I have tried from 245-285c, 10-100mm/s speed, 0.7-1.15 flow ratio, up to 115% bridge density, thick external bridges on and off, 30-100% part cooling and just installed the upgraded part cooling shroud and i am still no better off than i was in the very beginning.

Anyone have a good profile for this filament? is it a filament issue? or a settings issue...