Regarding biomotor qualities, 100m-200m are events requiring endurance of speed-strength. The best sprinters have different ratios of these biomotor qualities and yet are running the similar times on the track.
Is you Squat results a limiting factor in your sprint results? I’m not sure. Squatting heavy helped Ben to run fast and running fast help him to squat heavy. Everyday i see chicks lifting the same numbers as the sub10sec guys in coached, but who uses the best out of the basic strength and who had the best plan regarding the weight training evolution through the career? It’s better to be fried in the gym than on the track, however, you should look at the volume you are doing on the track it’s maybe too large for you.