How’s this for an obvious one. Try braking less. Braking slows you down and requires you to pedal harder to accelerate back up to speed. Unnecessary braking is a waste of energy and momentum. So how do you improve? Firstly try to eliminate ‘comfort’ braking. This occurs when you are rolling along a fast road or downhill and you start to go a little bit quicker than you are used to.
Braking to get your speed down to a level you feel comfortable with is fine but take a good look around first, if the road surface is good, clear of obstructions and relatively straight there is no reason to slow down so let the bike roll and enjoy some free speed. The next place to improve confidence is during cornering. Braking later will help you hold your speed for longer. Remember to always brake in a straight line so you are at a comfortable cornering speed before you start to turn.