There's 2 keys to successful sex for those with PIED, de-conditioning and conditioning
Rebooting (de-conditioning) - Destroying the pathways our brain built for porn, accomplished by abstaining from porn
Rewiring (conditioning) - Building new pathways in our brain for real women, accomplished by spending time with women
Some don't need to rewire, usually even if you do need to the process is reasonably quick. Those who don't need to rewire usually have had a decent amount of past sexual experiences with girls. So it doesn't speed up recovery, but for some it's a very necessary part of recovery.