Hello Mr/Mrs @iluminatethesky
I checked whole stuff which wrote under this link, plus reinstall the game, cos why not. Unfortunately nothing happend. I bring my PS4 to my friends and try there and same laggy as home. I tried use my 4G plus mobile net, cos i really want to play and want to solution fast as i can, but still same.
New bug or (don't know) since reinstall the game is:
The background music sometimes stuck and start again. And at the turf takeover last section of Marsmello map is super high performance issue ~unplayable 5-10fps. (Perhaps it's new patch cos when i bought the game i never get lagg & never had performance issue. I guess you can see when i bought the game, but if im a founder player.)
Honestly i thought my playstation is gonna die, i tried many other games which is totally work without any problem. I bought the new need for speed too and saw this is same game engine as PvZ but perfectly works on my old ps4. I know - i know it's not the same etc... just before get a new "link" for check some other games. Im just very sad for cannot play this game with my friends.
Anyway, thanks for helping! :-)