Up to GFPT: Around 4 months of flying 1 day every weekend with the occasional skipped week due to weather. Each day consisted of two flights. Total 28 flights, 26.8 hours VDO time (probably around 23 actual "flying" due to engine runups and taxi/takeoff delays. Tme includes the GFPT flight test.
GFPT - PPL: This is where you get a check flight typically in a better aircraf then learn how to navigate/flight plan. 12 flights, 20.7 hours, typically one a weekend with a 6 week overseas holiday break. Time includes the PPL test. Completed this in 4.5 months.
So all up just over 47.5 hrs.(of these, 11 hrs command - i.e. solo) in 8 months.
You can probably do it in less if you compress the timeframe or typically more if you have bigger breaks in between flying.
Most other pilots learning to fly along the same length had around 50-55 hours before PPL so don't bargain on the minimum no matter what the flight school tries to convince you.
Lastly, learning out of a busy airport is not a bad thing. Makes you pay attention! It will cost you extra in taxi time, waiting in line to take off and landing fees.