When do you guys think Deku going to truly surpass him? I say around the end of their school years or sometime during the start of their hero careers.
Honestly, I think it's going to be a while.
People tend to think that Deku will continue to gain mastery over OFA, becoming stronger and faster whereas the others may either slow down their progress because they are "limited" and it's hard to measure the progress of others.
But here's the thing - You cannot account for the abilities and techniques others may learn to improve their battle prowess.
For example - Bakugo improved his speed by using his explosions to propel himself, thus making him a lot faster and stronger. Horikoshi is amazing when it comes to being creative to make a character stronger.
It's possible that when Deku gains access to say, 15% OFA, Bakugo and others will learn other techniques to keep up and not get left behind.