Unable to find motherboard drivers

[BirthNight]

I bought a notebook from a local computer shop back in 2014, and recently upgraded from Windows 7 to Windows 10 with a full format. Once W10 was installed, I downloaded drivers for the Nvidia 780m GPU, Realtek audio, and network adapater/wifi card. Everything is running as it did before except that I have extremely low FPS when gaming. I also have horrible tearing in games, which is something that I never once experienced before upgrading to W10. I have to turn on Vsync now, but my FPS is still abysmal - we're talking like 10-20fps, where I used to get 40-50fps.
I have ensured that:

• 
  - the GeForce drivers are up to date and that the GPU is actually being used in games (i.e., not the Intel HD4600). I even have a little light on the laptop that lights up when the 780m is in use while gaming, and it is working fine.
  - 'Prefer Maximum Performance' is set in the Nvidia Control Panel
  - the laptop's power settings are also set to Max Performance

After much research, I have read that the low performance is probably due to other drivers not being installed or being out of date. All I can think is that the motherboard (chipset?) drivers need to be installed. However, I can't seem to find them anywhere.

According to Windows 10 > System Information:

System Manufacturer: Notebook
System Model: P15SM
BIOS Version/Date: BIOS Version/Date American Megatrends Inc. 4.6.5, 12/26/2013

But I've searched high and low on the internet and can't find anything related. A website called 'Clevo' seems to be the closest thing, but I still can't find my exact model number, nor can I really even tell which drivers would be for my motherboard.

Is something like DriverEasy useful for this type of situation? What are my other options for pinpointing and fix this problem? Thank you!

 

[cin19]

Yes, your laptop is made by Clevo. The drivers download site: http://www.clevo.com/en/e-services/download/ftpOut.asp?Lmodel=P1xxSM&ltype=9&submit=+GO+

But did you check the cpu/gpu temps yet? if they are overheat, you will get the same problem, lower fps during the games.
You can use HWiNFO or MSI afterburner to monitor the temps during the games.
MSI afterburner: https://www.msi.com/page/afterburner
HWiNFO https://www.hwinfo.com/download.php