I feel myself getting left behind

I'm a 19M and currently in Uni. Since highschool I always love the thought of studying cuz it bring me joy whenever i know something new. However, the problem is that I absorb information too slowly no matter how hard I work compare to others. I'll be putting 10 to 20 hours of work just for them to understand it in less then 2 hours. And because I want to be like them understanding this and that quickly I always hang out with them, don't get me wrong I love them as friends and so do they to me. But its just hard sometimes you know not have that thought that sometimes I'm just not meant for this world or this society. I just feel out of place. I guess this is probably just reality I guess. Tbh idk what to feel, I just want to be like them understand things quickly. I find it hard to understand materials or anything new so instead of understanding I always seek out patterns in problems solutions or anything overall. I feel like I am a failiure to be honest.