Laptop slowing down when i plug in my charger

Hi,

i have a Fujistu LH532V laptop, i bought it a year ago.
i have a problem, when i charging my laptop, when i playing games it becomes slow(about 10-20 fps) but when i dont, the game runs normal (60fps), but when i browing, opening Photoshop or other non graphic programs, the laptop runs normaly (charged and discharged), i have tried to charged it and removed the battery but it still slow down the games, i think there is something wrong with the charger.
i searched for the solutions on the Google but nothing solved this problem.
for the first time i bought this laptop it runs normaly, even when i charging it, it increase my laptop's performace, but now it slow down my laptop. i have tried reinstalled the windows 2 times. but nothing happen, and also i have updated all drivers and still not solving this.

I'd thanks if someone can solve this problem, if not i will bought another charger.
Thanks in advance.

ThrashZone said:

Hi and welcome to SevenForums,
I'd say it could be either the battery it's self or the charger ?
I would imagine the charger is the cheapest thing to try first
Cheers.

it is the charger.
thanks!