I would slow her down some. I agree with putting more food down on the track. You want the dog to check each footstep and to do that you need to teach her there might be food in each one. Track her in the morning before she eats.
That's how I started her on week 1, 6 days of short straight (<100 yds) tracks, 3 tracks each in a set, running each set twice. Treats every few steps.
Week 2 was pretty much the same but with aging of the tracks and switching tracks with another track layer (friend who is also training his dog).
At the middle/end of week 2 she was ignoring (or finding missing) many of the treats so I started weaning.
On week 3, introduction of corners, ( only the second leg has treats).
I agree she needs to slow down, the problem I have with using treats is that I have to bury each one (because of scavenging crows and seagulls) so she spends a lot of time digging up treats, which I'm not a fan of as I think this extra digging "might" be distractive. (I'm fine with one every 10 yds or so). I think she already realizes where the payload is, as she has been ignoring many of the food drops since week 2. Also the crows and seagulls are getting crafty and have figured out how to dig up some of the treats so in many cases she has scented a food drop and found nothing.
The darn crows even stole my friends sock article with treats inside.
It's quite funny to see about 10 crows walking a track and executing the turn perfectly.
We lay tracks at 6AM every morning, and run the dogs about 6:30AM. Since just before the first week I have cut her regular food intake in half, no evening feeding on days before tracking.
What do you think about switching from harness to collar with leash running along underbelly? I saw some posts that indicated that this might be a good way to keep the dogs head down and slow the dog down.
I'm also hoping that she will naturally slow down as the tracks get harder and are aged more, but that might be blind optimism on my part.