Your recovery time is really affected by so many things which is factors, and thus each person and each pregnancy recovery is different.
Factors that do help - being fitter, being slimmer, being able to get more rest before, during and after.
Factors that do not help - being a bit overweight, being unfit, having existing kids, not having help with housework and the like, thinking you are feeling better and start moving around before you actually are.
I have keloids - keloid symptoms include dome-shaped, shiny, raised scars that may be itchy, even painful. Basically my scars do not heal well, and pretty much look infected for about a year - yumm I hear you say!
With my first c-section I healed quickly, the pain was very manageable - I put it down to the fact I was fit, very slim and did not have other children - also baby was born in December, so it was warmer, and I think these were all contributors.
Even after 3 c-sections I cannot really give advise on how to make it better - other than take your meds, take more meds, take it as easy as you can, listen to your body and its twinges - if you are in pain, lie down a bit, or move slowly.
Be super aware of picking up stuff - your other kids as well.