Hey a bit of networking help am ready to trie everything to fix it

hey i built a gaming pc in the hope that i would be able to play minecraft on one pc and the other pc would just run the server it was in the hope of fixing the server lag but event whit that the server lag for my frend i tried giving the server 8GB of ram even setting the server and hamashi to hight priority whit task manager that seem to help but not by much i am using a d-link device to connect to the wirreless internet my intenet provider is bell aliant my internet is fiber op i heard that port forwarding is better than hamashi but dont know how  so i need help to stop the lag any idea please guy 

Use port fowarding its much better what cpu are you using and how fast is your internet?



switch the server to a wired connection