Hey, I watched a few. Commentary is good, although I would perhaps increase the in-game volume slightly. Perhaps 1db or so, not a lot.
A few points I did notice:
You'd probably gain a lot of time if you were more careful on shifting and didn't blip/release the brake quite as much while blipping the throttle on downshifts. Although I know it can be incredibly hard on a sim setup with not so good brake and throttle feel. Doable but not perhaps immediately transferable.
Go and watch that old Senna NSXR onboard again and pay attention to the downshifts.
I also saw you "cheat" the car into the corner slightly some times: turning in before the actual turn-in point. Losing seconds of time there potentially in some cars.
There are indeed a lot of corners where you actually do want to aim deep and hit an early apex while carrying as much speed as possible, but if you look closely, you see that you're easing off the brake and momentarily "floating in place" on entry without using the full potential of the tire.
I believe the reason is likely that you're not paying attention to your brake release point: only to the apex. Which is not bad per-se because it means you're looking ahead.
I'm sure you'd fix it in a few laps, but it's good to be more aware.
Try it and see how it works for you. And as always if someone disagrees, we can always go and drive together. Maybe you'll prove me wrong.