I ran my bike for the first time ever on a track, within a week and a half of buying the bike.
I had times very similar to yours.
The hardest part for me was launch...
-I was told to go on the 3rd yellow light, and it will equal out w/ your reaction time and you'll have a badass ET.
-I didn't try launching in 2nd...in 1st it wanted to stand up a lot.
-At our track, on the outer edges of each lane, the track changes from street tar to concrete (in the extra space, in case someone crashes or anything). I found it easier to launch off to the side a bit.
I'm a lot better at riding since I've been though. I prob. won't go back until I get my mods done (maybe.)