What is your PC configuration?
The game was tested on a GTX1050Ti 4GB, with an i3 processor and 8GB of RAM and the game ran smoothly at 1080p with normal settings of 40-50 FPS.
Okay, it's a laptop. This should be enough for a smooth game on medium settings.
Check the system for programs that use resources, and a virus scan is also a good idea. Update the drivers, especially for the chipset and video card.
If nothing helps, then create a thread on my Discord server and we can take a closer look at the problem.