friend is getting like double the xp then me in every game.

so, we play fortnite og alot, somehow hes got the onesie skin even though the 3rd page is locked. I only get ~35k xp each game, but my friend somehow gets ~73k. im very confused cause he doesnt play alot as he has a 9-5 and is already level 80..

im only wondering if anyone else has this issue since im getting xp so slow whilst hes flying through it.