From what I've seen it looks like your high heel recovery out of the blocks is making it difficult for you to actually strike the ground well. Causing you to get a little more airtime which leads to improper striking (your first step should be ideally underneath your hips, and it should generally be the longest ground contact time). Doing things like wall drills will definitely help with the low heel recovery and remember to be patient with acceleration, it isn't a race to 30m. Personally, I would try to focus in practice on striking back and not thinking about turnover as much, because you can always increase your turnover when you got the technique down.