Well how long have you been squatting? If it’s still in teh first two weeks since starting squatting then I find I am constantly sore. After that, though, it seems to go away.
How many times a week are you squatting right now? Whats the set/rep scheme? How tired do you feel the next day? Are you doing any other things besides lifting right now (speed work, conditioning, drills, etc…) What kind of recovery methods are you using? A protein shake alone is not going to get rid of DOMS. Might be that you’re not used to the load and your body is still adapting to the stress. If you could answer these questions, that would help out alot. I am willing to bet it has to do with volume?
Dear lord. Many of these Russian lift programs were developed for people on drugs. Heavy to moderately heavy squatting 3 to 4 times a week when you’re clean? AND you’re trying to train for speed?
If anyone can do that program clean and still have a good running program along side it, then hats off to you…
I would say the squat program itself is overtraining. And I wouldn’t recommend speed work when your legs are sore.