Rating system

Describe your issue

I started to solve problems from the beginning of the contest and I came across a guy who started late like half an hour late than and solved 5 problems and I solved the same number of problems but I was active from the beginning, he got a spike in his rating of 700+ and me only got 100+ we are in same div and he is at some 2 digit rank, this is like depressing me to participate in contests


Additional info