I did some speed tests and the result was that I have 20mbit / s up and download in Fortnite creative but I have a 100 ping on average, does that make sense?
The speed has nothing to do with the ping.
Since the ping has nothing to do with the speed at all, but almost exclusively with the distance and delay between your PC and server… Yes "makes" sense. Even a 56k modem line that has long been defunct can achieve better results than a state-of-the-art fiber optic connection, as long as it is only connected around the corner from the data center.
2 questions 1. Can I somehow improve my ping and secondly, according to Fritzbox, we have 111.88 Mbit / s download and 36.99 Mbit / s upload but I only have 20 of both, is there a solution?