XPS 9560 Display driver issues

Hi guys,

I recently bought the XPS 9560 (e-value: Z511296AU) and have been mostly using it mostly for uni and assignments. I read that the GTX 1050 built in the laptop was able to run Overwatch with benchmarked FPS at ~59fps if not more. So I ran Overwatch on the laptop and assumed that the integrated GPU (intel) would automatically swap over to run overwatch using the 1050 display graphics. Upon playing a few games the FPS remained at a consistent 29 - 30 fps even with FPS cap above 30. I ran Dxdiag and found that the display driver when running Overwatch was the intel integrated graphics, not the GTX 1050. I googled ways on overriding the integrated graphics but did not find any answers i needed

My question is really:
Does the 1050 get capped at 30fps when running a low-mid graphics demanding game like overwatch?
Is the 1050 in a laptop different to the 1050 in a desktop?
How do i use the 1050 in my laptop specifically when gaming or has it been running the whole time?

PC specs:
CPU: 7th gen Intel i7 7700HQ
OS: Windows 10 home
RAM: 8GB
HD: 256Gb SSD
GPU: Intel integrated + GTX 1050 (4GB)

Thanks in advance for reading.