H bridge using MOSFET driver don't work
Vgs=12 for 1 ms ... that's plenty long enough as using this circuit as designed, you'll be pulsing the high side driver much faster than that; typically every 50 us (20kHz) PWM frame rate.
You can't run this circuit at a 100% duty cycle (high side driver continually on) without coming up with alternate power arrangements instead of the bootstrap.
Removing R3 would improve matters, and allow a more reasonable value for C1, eliminating the leaky electrolytic capacitor.