I wouldn't aim for faster times. Just try to be the best/smoothest driver you can be. Until you're in the red/black group, you really shouldn't be attempting to shave off seconds. That's when you get in trouble IMO.
There's no mystery as to why 90% of HPDE accidents happen in the intermediate groups.
If you find yourself pacing or passing other drivers in the intermediate group without pushing yourself too hard, then you know you're above par for the group.
2009 BMW M3 E92 6M AW/FR
Eibach Springs + H&R Front Sway + LUX AE + LCI Taillights + BMW Performance CF Spoiler + Bastuck Clubsport Exhaust