I had the same type of issues and it turned out that it was my java version giving me troubles. Every tp or /home took about 20 sec to load. One time I was in a pvp fight with lego and he killed me and we went back to spawn and I saw the loading dirt-screen the entire time.

possible other steps to troubleshoot:

• Check what java you have and make sure it’s updated ( Java SE 13.0.2 is the latest  release for Java SE Platform. Java  SE 11.0.6 is the latestrelease for JDK 11. Java SE 8u241 is the latest release for JDK 8 /  13.0.2 didnt work for me , so rn I am running on SE 8u241 )
• do a traceroute or ping to see how fast your your pc can reach mc.piratemc.com ( my pc ping was 132 but ingame ping was 3k …. so I figured it was my program rather than my actual connection)
• try a different dns server ( use Google: 8.8. 8.8 & 8.8. 4.4. or  Quad9 9.9.9.9 & 149.112.112.112 or Cloudfare 1.1.1.1 & 1.0.0.1 )
• reboot your router ( sometimes it works)

Good luck ,

Baz