Obvioulsy the plant didn't take your opinion into consideration, eh?
You don't state if it is a photoperiod or autoflower. If it's an autoflower, then this is exactly what should happen. If it is a photoperiod, you have given the plants an extended dark cycle and caused flower phase to start 2-3 weeks ago by the looks of it.
Relative to an autoflower, it is not incredibly early/fast. they usually only stay in vegetative phase for 2-4 weeks. Some do go longer and those are typically the larger autoflowers, for obvious reasons. Autos are not faster in any respect. Anything you do with an autoflower, you can replicate with a photoperiod, except for the uncontrollable flip to flower phase, lol.