Lol at 50 matches in 100 = 5/10. Even a top tier gigachad wouldn't get that many because of how the algorithm works.
Just because you swipe right on a girl doesn't mean you appear in her stack (i.e. the cards she sees when she is swiping). Infact, given guys swipe right a LOT more than girls, you probably won't be appearing in that stack, and if you do you'll be quite some distance behind in the queue (i.e. behind other guys who swiped right on her before you did).
The AVERAGE match rate on tinder is 1/115: https://medium.com/@worstonlinedater/tinder-experiments-ii-guys-unless-you-are-really-hot-you-are-probably-better-off-not-wasting-your-2ddf370a6e9a. So if your batting average is higher than 1/115, you're probably above average in looks.
Location is hugely important. If you're white, switch to Thailand, Vietnam or the Philippines and you'll probably get a lot more matches. Same for Latin America. I'm ugly as shit, 4/10 PSL. I have a respectable match rate in SEA (around 4-6/100, which as already said is around 5-7x the average match rate) and got plenty of mileage out of Tinder when I was there. I get ABSOLUTELY FUCK ALL back in the west. Zero matches in 2 years, although admittedly for the last year I just kinda gave up and never used it. In Russia I got like 1/250 matches, so below average but still something. Just play around with locations a bit and see.
Keep in mind it takes a LONG time for your results to converge if you want an idea of your 'rating'. 100 swipes is just lol - remember the average match rate is 1/115. You could easily get 0 matches while being average, or you could get 3 or 4. You need a big sample of AT LEAST 3,000 swipes before you can start having an idea of where you stand.
No one, not even Chad is getting 50 matches in 100. I suspect the Chaddest of Chads, a proper 10/10, would max out at around 20/100 - simply because the algorithm won't always show him to the girls, when it does he'll still often be well behind in the queue so the girl won't see him until weeks later, and because even Chad gets rejected sometimes.