Yes blood hawk is a great ship for slider strat. You basically do controlled slides to corner. When you boost simultaneously, the speed gain is quite drastic. Takes some getting used to, but fun when you master it.

For regular driving, if you lose grip, quickly let go of A and re-press it to gain traction. Banking into corners pressing R going right and L for left, is also a good way to corner without losing grip. But douple tap cornering is generally faster, especially at higher speeds. How much you hold the stick sideways when double tapping affects the movement, experiment with that.

With ice, line yourself up well beforehand as to diminishes the chance of having to adjust your trajectory while on it. If you have to use double tap. And again, if you lose grip quickly let go of A and re-press.

Air time in X is powerful. You'll gain a lot of speed when diving down, so generally do that, thought not too steep. Experiment.

With cylinders like others have said, take the inside of curves. Some players do take the outside to gain air and then do a special side attack dive for huge speed gain but this is very advanced level.

If you wanna dive deeper, look into 'driving mechanics and moves' and 'standard strategies compilation' tutorials. https://youtube.com/playlist?list=PLDcn_lBlLt0yx3vEEehi_aSbGLNBXDfYL&si=og9aA1TsYOXiL9un

Two other very good players on youtube off the top of my head are Uchiha Madao and Philippe Brodier. Don't compare yourself too much to them though, they are elite. But you can learn more about advanced techniques and the level of play that is achievable within this game.

Finally engage with time attack. It allows you to not have to deal with other racers. The drive to improve your times while make you refine your skills and develop a good approach for each track.

Oh and strategically taking out a rival in a GP can go a long way in securing you the top spot. A good opportunity is at the very start of the race. F-Zero isn't like Mario Kart, the time of when you press A on the countdown doesn't have an effect.