Blipping the throttle like that is going to waste fuel and you get quicker lap times by being smooth on the throttle.
If you watch F1 you will see Schumacher and Alonso's totally different styles of how to accelerate around and out of a corner.
On one hand you have Michael blipping the throttle like crazy and then you have Alonso very smooth and gentle on the throttle but they are both same speed and lap times are virtually the same.
I used to blip the throttle alot to get around the track but i changed my driving style to being smooth and gentle on the throttle and my lap times have gone down about .5 of a second a lap.
But try both and you will for yourself, alot of the things people suggest won't work for you anyway probably even what i have said
. Its better to try different things to see what works better for you rather than listening to people and just doing one thing.