Old Client Back!

Riot, This is for you. Today I openned my LOL and i needed to upgrade for the new client. It should be cool. I though it would be faster, more advanced in the interface with the user. WOW, it is exactly the opposite. I need to wait an hour to open the loot, the interface? I actualy prefer the oldest client. I have even a loading problem so I can´t play League, even if I want to. Can´t u give us the option to get the old client back? Its much better, especially in low-spec machines (like mine). RIOT HELP US................