Helios 300 Drastically Dropping Frames?

I also had the same problem, its a bug in the latest Win 10 update, so just play the game on Windowed mode or Borderless mode the issue will be fixed.
The full screen mode seems to be a problem in the latest windows update.

I've found that the Helios stock drivers work best for me. With the new windows update, I would suggest you try to install the Intel ACHI, Chipset, Turbo Boost, and VGA(Nvidia and Intel) from the Acer website for your model. Make sure your BIOS is the latest version too. If it is, shut down your PC, boot into the BIOS(spamming f2 until you enter) and try defaulting it as well(f9 defaults, f10 saves and exit). This is just a suggestion, I know it has helped some users, while others still experience issues. If you still experience issues, I would go through a full optimization of Windows(disable needless start up programs, services, and windows settings like updates and data collection) until you can get your CPU usage to run 0%-2% while idle in task manager. This will help a lot and prevent random background usage from data collecting and updates. Go into your NVIDIA Control Panel settings, and turn Power Management Mode to Prefer Maximum Performance, and Texture Filtering Quality to High Performance(or Performance). I'm going to test the Power management modes with benchmarks and MSI, but this might help in the meantime. Also, make sure your Power Plan in your power options is set to High Performance while on AC power.

The GPU works in a way that the more percentage of usage/load on the GPU, the less clock speed and voltage you will get. It basically downclocks itself when more load is placed on it. You will want to try these steps to allow less stress on your CPU and GPU, and maybe turn down a few lower impact graphics settings, such as Shadows, AA, etc. Hope this helps.

has anyone fixed this yet?

I found a solution and I hope this helps:

Do not set the display to fullscreen. Set it on windowed mode and you should be good. Do this as a work around until a real solution becomes available.

Hey, You might want to check the temperatures before frame drop, maybe in predator sense. If the temperatures are almost near the maximum temperature, try undervolting your laptop with Intel XTU. You still get frame drops, but not as drastic, and much less often. When it does have a frame drop, it goes to roughly 20-40 fps usually. This is with my laptop, not sure about yours. Also another thing, leave your GPU on normal, that way it won't throttle as much, and temperatures will be lower