Extreme lag and ping issues

Hey, how’s it going mates?
Look, I started playing Hots on release and I had never had any lag or ping problems. As any other game, I gave it some time out and recently started to play again.
However, when I join a game I see everything is pretty laggy, making it hard to aim and play, but often times it also sky-rockets, making it unplayable.
I do find this strange, because I have a fairly good internet connection with no lag problems with games like LOL, DOTA, R6, DBD, etcetera.
It’s also weird because my laptop is above all requirements needed, its an Omen 15, and It’s got a pretty good graphic card and great proccesor.
So, any help?