weird problems with my laptop Asus G750jx

well guys i have some problems appeared after i purchase this laptop
1- im gettting laggy if i work with battery , while playing , performance will drop down and my processor will decrease to 0.77 MHZ , i've read that using throttle prog would damage he battery and some words like that , so if som one got Experience enough to deal with this problem , cause its really really annoying


2- while writing some letters don't typed like the keyboard miss letters while u typing so u should press again on the letter button to activate it again , first time to see problem like this in my life

so plz anyone have any solution for my problems tell me cause im got tired with no solution
Thanks you guys

 

by 0.77 MHz you mean 0.77GHz, is that right?
Does it automatically switch to power saving profile, wherein it may use the lowest possible processor speed maybe?
Throttlestop would greatly help you in establishing your own processor profiles and just using the balanced state for windows, and thus having more control over throttle behavior, low-power states, etc.

That kind of keyboard issue sounds almost like you have a defective keyboard or something. Unsure what to advise you about that.

Maybe return the laptop or send it into service for repair?

 

thanks for supporting me mate , well ya i meant 0.77GHZ , its not switch automatically to power saving , i modified it with balance and high performance but nothing changed , im afraid to use Throttlestop cause of thing i've heard abt damaging the battery , and btw my laptop's Bios v 2.09 latest , it should fix the problem with the previous version 2.08 , but thats fake cause nothing changed also , if u have got experienced you can help me , if that wont make u a lil busy

i live in egypt and i've got this lap from canada so its very complicated