I have build up some rules for me to estimate or a game is laggy or not.warping ppl:
If it happands to me 3 times i leave the game.
Wall walking:
When it happands to me 5 times i leave.
When i get conection to server lost ect. 3 times i leave.
When i slide back when standig still (you know)
I leave when this happands 4 times.
Ofcource you can decide after how many you leave the game but when you use these rules you can play a nice game.
Just keep te count it helps me find nice no lag games 
You should try it!