Is it a new problem or a recurring issue?
Do you get any messages from warzone? (Eg. Warzone is under heavy load.)
Also, the PC or Mobile question is important. I have heard a few (less then 3?) players say that they sometime experience lag on the mobile app at peek hours. There are no complaints on PC that I am aware off.
EDIT: If you think this is a bug, here is the bug form : https://www.warzone.com/ReportBug
Edited 3/2/2020 16:07:40