hello guys, i hope you all are having a great day. so my problem is this : as soon as i got the phone, i rooted it ( obviously knox tripped but that doesn't matter to me) i flashed some customs roms, but i didn't like them because the phone was lagging and freezing randomly from time to time with the phone starting to heat in just 5 min or less and the battery life got crappy. Then i decided to flash a stock rom odin, but that didn't change a thing, since the phone still having having heating issues and extreme battery drain. oh yeah, and fast charging doesn't seem to be fast even though the fast charge activated. Help you guys 
