Re: s5 lollipop update and draining the battery and slowing my phone down?

Ok so I downloaded this lollipop garbage a few weeks ago. The battery life was draining rapidly, phone was overheating, phone was freezing, apps werent working right etc. So I did backed up my phone and did a factory reset....all that seems to have done is stopped the phone from overheating. Battery drains 20% an hour just sitting with no open apps and wifi, blue tooth and gps are turned off. This is rediculous that i need to charge my phone all day for it to be functional. On kit kat my phone would sit all day and barely lose 10%. And on top of that its now taking FOREVER to charge. Can we please have the option to go back to kit kat until you guys fixed this extremely flawed software?