Too many UDP connections on openwrt for xray

When use "netstat -anp | grep udp", I found too many UDP entries like:
udp 0 0 27.56.242.61:19489 0.0.0.0:* 7036/xray
udp 0 0 37.212.64.167:62498 0.0.0.0:* 7036/xray
udp 0 0 202.166.27.226:57890 0.0.0.0:* 7036/xray
udp 0 0 41.239.51.175:63010 0.0.0.0:* 7036/xray
udp 0 0 211.33.187.164:27170 0.0.0.0:* 7036/xray
udp 0 0 49.192.45.14:37411 0.0.0.0:* 7036/xray
udp 0 0 176.215.112.47:52775 0.0.0.0:* 7036/xray
udp 0 0 186.26.118.222:8232 0.0.0.0:* 7036/xray
udp 0 0 39.42.0.15:40489 0.0.0.0:* 7036/xray
udp 0 0 106.207.71.37:20010 0.0.0.0:* 7036/xray
udp 0 0 61.224.223.246:17450 0.0.0.0:* 7036/xray
udp 0 0 106.211.22.57:62507 0.0.0.0:* 7036/xray
udp 0 0 195.154.179.2:23595 0.0.0.0:* 7036/xray
udp 0 0 109.201.113.48:41516 0.0.0.0:* 7036/xray
udp 0 0 203.189.118.241:12333 0.0.0.0:* 7036/xray
udp 0 0 94.75.40.138:54830 0.0.0.0:* 7036/xray
udp 0 0 223.238.29.123:2606 0.0.0.0:* 7036/xray
...
There are 800+ entries.

Is it a problem? Sometimes it will slow down the access.

P2p ports