https://www.youtube.com/watch?v=llGpp0jWNhk 60-70 FPS in 1080p and epic quality. I wouldn't recommend this PC because the power supply and case are from a brand known for being very bad (LC power), and the processor came out almost 4 years ago (2nd quarter 2020). After that, it's fine for games that aren't too greedy.

Yes, the memory should be expandable. However, the manufacturer unfortunately does not provide any further information on this.