I averaged 6.3 hrs per week from start to comm/inst/CFI/MEL. It took ten months of flying.
Solo'd in 7 hrs. PPL at 44 hrs.
Comm/Inst at 201 hrs. (minimum was 190 hrs). It's hard to get it exactly in the minimum time.
Added CFI and MEI by 252 hrs.

Can it be done faster? Sure, but it's not easy.

There's only so much your brain can take. Think a new driver has the ability to compress all their student driving hours into one week? A new driver can't process 8 hrs of driving, every day, when they're brand new and training to learn. Flying is no different. Two flights per day is about the limit. The only time you can really crank out hours is when you're doing cross country flights.