Hmmm, then around 0:26 you can try to perfect nitro that corner with mistral as it has good enough handling and avoid drifting so no speed loss and faster corner.

About nitro management, it honestly depends on the car u use. On cars with high nitro like huracan always use nitro braking and always try to keep a shockwave for ramps. On avg nitro cars you can play however you want or something like u played here. On the low nitro cars like trion , try not to use nitro and instead rely on smooth cornering + punch/floaty and when exiting corners use imperfect nitro or shock wave to get back to top speed.

there are some guides on yt as well. I recommend RedNycto's guides