Please help! New Laptop vs Old Laptop (Games)

Hello! I recently purchased a new laptop, which is a direct upgrade from my old laptop.

New laptop specs (as seen from the "Control Panel -> System and Security -> System):

Intel(R) Core(TM) i5-6200 CPU @ 2.30GHz 2.40 GHz

Installed RAM: 8.00 GB

System type: 64-bit Operating System, x64-based processor

Windows 10


Old laptop specs (as seen from the same directory I got the specs above):

Intel(R) Core(TM) i3-3217U CPU @ 1.80GHz 1.80GHz

Installed RAM: 4.00 GB (3.87 usable)

System type: 64-bit Operating System, x64-based processor

Windows 10


So, I have been having problems with playing computer games on my new laptop, problems that occur only on my new laptop rather than my old laptop.

Both my laptops have the AMD-Radeon graphics card.

If I were to play a game with a lot of particles such as Counter Strike - Global Offensive my FPS (Frames per second) would drop whenever a smoke grenade would go off near me. This is only on my new laptop. My old laptop for some reason can handle this.

I've already unparked my CPU's but I haven't installed the latest drivers for my new laptop or even my old laptop as when I did that it would lower my game performance for some reason.

My question is: Why is my new (better than old) laptop not able to handle things that my old laptop could handle.

I have 2 graphics card apparently one is:
http/imgur.com/8n7G1zp

and the other which is radeon is:
http/imgur.com/qSQnZGQ

Is it possible that I'm using one graphics card over the other? Could that be my problem? If so is Radeon the stronger graphics card? If so, can you tell me how I can enable the Radeon graphics card over the Intel one?