Video Memory shows up as 2MB

So I'm trying to play an old game on a Windows XP VM, but my VRAM shows up as 2MB, whilst it is set at 1GB. Can someone help?

Some specs:

OS (host) = Windows 10 Home 64-bit

CPU = Intel Core I3 2120 (3.30GHz)

RAM = 8GB

GPU = AMD Radeon R7 250

Samsung SSD

Screenshot attached.

I am using my optical drive to install from the disc. When I install the game, I can't play it because it crashes immediately.

The game I want to play is Donald Duck: Quack Attack

Thanks!