Server Lag, no loss prevented (Ranked game)

My team lagged and even the enemy team, enemy team had less lag than us, thats how they managed to win, we all had problems on the game load took 2 in-game minutes we had lag 'till the end, enemies ended on minute 14 we could´nt do anything coud´nt even move, that game had obvious server problems since my internet is and was working perfectly, checked my browser, no loss prevent, we lost lp.