Client stuck on authenticating and other problems with league

Lately the game has been stuck on authenticating, and if it does manage to login, the game is literally unplayable, queues not working, clicking play button but no response in return, and if you manage to get in a game, you will have huge lag spikes while having a steady playable ping, does anyone have this problem, if so does anyone know how to fix it? I have made a ticket, but its typical of riot to take weeks to respond, Please help