[charlesk]

A 9.5t in a 2wd should be brisk but it won't be super fast.
I suspect you're just expecting too much out of it.
If you had a decent brushed 12t back in the day, for similar revs you should be looking at around a 6.5t brushless.
And if you want insane grunt/speed on 2s then you'll need even lower turns, something like a 5.5t or even a 4.5t...
A 9.5t will be fine on most tracks with the right gearing and a bit of timing in the other hand.