https://www.gamespot.com/articles/pubg-pc-test-server-update-improves-performance-an/1100-6456304/

A new patch is out now for PUBG's test servers that includes some changes that developer PUBG Corp. says should improve the game's performance and more.

Starting off, the studio says server and client performance should be better now by way of changing the visible distance when your character is in the air. Additionally, no longer will all players spawn at the same place before matches, which should also help improve performance.