It's the netcode, plain an simple. Watch this to understand netcode.
https://www.youtube.com/watch?v=lwmD_RgokTs&list=WL&index=5&t=5s&ab_channel=SwizzerSweet
Battlefield has some of the worst netcode in any fps that pretty much hasn't changed that much since BF1942.
@CTD-Coolhand Good netcode video. I'll add this visual aid to help show the difference between a low tick rate and a high tick rate.
20 Tick Rate
100 Tick Rate
Besides the tick rate, the "server" itself is probably a cheap P4 dinosaur from 15 years ago. Cheapest system with cheap connection to keep profits as high as possible. I've been playing this series since 1942 and they have never had a good public server. Most hosting services from back in the day where leaps and bounds better.
