Razer Blade charging problems when gaming

[ashsaunders]

Hello, around Christmas 2016 I purchased a Razer Blade gtx 970m,

and I have enjoyed using it for around 7 months. Now I have noticed when its charging and I'm heavy gaming (PUBG, CS:GO, Overwatch). The charging seems to randomly switch between 'Not Charging' and 'Charging'. This means the fps drops down to 30 each time and then jumps back up to 60 - 100, and the battery slowly goes down, this can be quite annoying. I have tried changing NVIDA Control Panel settings to Prefer Maximum Performance and Intel Graphics settings. 

Can anyone help with keeping the same fps when charging / not charging? Or should I consider buying a new battery / charger? Any answer is appreciated 

 

Laptop Specs:

GeForce GTX 970m

Intel(R) Core(TM) i7-6700HQ CPU at 2.60GHz

15.86 GB RAM

3200 x 1800, 60Hz