Air circulation should be ok with both fans going.I could say light is about 90cm roughly away
I have the standard fixed fan on above the plant more so blowing on the light
But during the day I have a oscillating fan abt 40cm away with the door open
I think its just the fact the hps is more intense with the extra lumins.
I'd give her a couple days to acclimate and see if she perks up.
If she doesn't then switch back.
Bill