MASSIVE FPS DROPS PLEASE HELP!

[2JRichardson]

Hi, I really need some help!

About the PC:

In January 2016 I purchased a HP Notebook 15 - ae065sa from PC World for around £550 reuced from £650. I saved up for this for ages and yet it's faulty Ever since I bought it I had some issues regarding the FPS. So this computer comes with a NVIDIA Geforce 940M, which I know isn't the best graphics card in the world but it was the only one I could get for my price range which wasn't a desktop!

Specification:

GPU - NVIDIA Geforce 940M (2GB)

CPU - Intel i5-5200U 2.2GHz (duel core as its a laptop)

1TB Hard Drive

8GB RAM

The Problem:

When playing games I can get a playable FPS on low settings in games like CS:GO (70FPS), Rainbow 6 Siege (60 FPS) and Battlefield 1 (40FPS). I keep having an issue that means my frame-rate significantly drops to between 5-15 FPS for around 10 seconds to 1 minute. As a keen gamer this really sucks and is unplayable. It's basically slow motion, and in combat I stand 0 chance in coming out alive!

What I Have Done:

I've tried everything! From updating all possible driver for my computer and graphics card. Stopping random background processes and start up programs. All of my in-game settings are all at low or switched off, the resolution has even been scaled down.

I though it may have been a have a heat issue so I sent it off to be looked at by KNOWHOW. The fans were replaced and the BIOS chip replaced, yet nothing seemed to change.

I believe its not due to a poor graphics card as it can achieve good FPS, but it drops like I mentioned above. I also don't think its heat related as the fans were repalced and this problem occurs when I just start up my pc and lpay straight away, when its still cold.

I've looked at the task manager performance page, nothing is at 100% when these drops occure, im really stuck on what to do next...

Thank you for reading and hope you can help!