Personally I don't think more afterwards will help. However, more during might help.

I imagine you are running if you are burning 1000kcal/hour and not drinking/eating during the workout. When running I find if I carry a gel and take that at the 30min mark I do way better near the end of the run and get far less DOMS. Calorically it shouldn’t make much of a difference being only 100kcal, but it does. Afterwards I have a sweet drink before hitting the shower, then food.

On bike nutrition is so much easier.