|The video is integrated into the motherboard or the CPU and it cannot be changed. If the BIOS does not have the option to increase the shared portion of the RAM with the video, then it is unlikely that there will be another way.|
Laptops are typically not very good for gaming unless you purchase a gaming laptop or select the laptop with a distinct gaming level video card with dedicated video RAM, improved cooling, and other options to maximize the gaming ability. This is why gaming laptops are typically more expensive than most general purpose laptops. The same would be true of a laptop intended for Photoshop, AutoCad (2D & 3D), and similar programs that require heavy graphics use.
You have to be a little bit crazy to keep you from going insane.