There are a few potential reasons why your PC's ping might be high:
1. Your internet connection may be slow or unreliable.
2. You may be connecting to a server that is far away from your location.
3. There may be a lot of traffic on the server you're trying to connect to.
4. Your computer's firewall or security settings may be blocking some of the data that's being sent or received.
5. Your PC's hardware may be outdated or not powerful enough to handle the data being sent or received.
If you're concerned about your PC's ping, the best thing to do is to run a speed test and ping test to see what your current speeds are and where the bottleneck is. From there, you can troubleshoot accordingly.