@RDMyers65b14_ESO
The slow rendering of terrain and players could be the result of a variety of factors. Depending on your PC, the more players in one area can cause slow down on lower end systems. The problem could also be connection related if you're experiencing latency issues. The first two things you can try that may help are running a repair through the launcher and lowering your graphical settings. Please let us know if either of these improve your rendering issues.