Does this server have internal lag or something?

Hello, i was wondering this because it happened to many times already for me, like usually when playing wow you have something called MS(miliseconds) so from where you play it changes, so if you play with 100ms(0,1s) or 200ms(0,2s) it will be hard like kicking cast or stuff like that.
But this server has something else appart from the delay from ms, like a internal lag? not sure how to say it but you can LoS and be already in the middle of the pillar and they cast it anyways, this never happened to me in another server.

Imgs:
https://imgur.com/a/KPKRN
https://imgur.com/a/b2kC6
https://imgur.com/a/fO5zM
https://imgur.com/a/tqmNk
https://imgur.com/a/TlStK