how fast you can learn something doesnt have as much to do with potential as it would for being a genius vs hard worker though
being uchiha, sasuke can naturally develop abilities sooner than most other characters could......just like how he was able to perform fire jutsus while most ninjas cant do that until they are chuunin or jounin

im sure you'd all agree with me in saying that naruto has the most potential out of everyone, but does that mean that he could reach lee's speed of taijutsu in a shorter amount of time than sasuke?