So, maybe our ability to recover is not proportionate to your ability to get stronger or build muscle as I said, but if it has not improved e.g. you are not lifting more/lifting heavier than you were a couple of years ago, cet par, then you would have to question if something is amiss. For example, if you looked back at your training diary and reverted to a program from a few years ago you would (should) find it significantly easier than your current one, and recovery should not be an issue.