In order for you to play Shadowrun: Dragonfall - Director's Cut on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
OSX 10.6
Processor (CPU):
Intel-based Macs only (x86-compatible, 1.4GHz or better)
Memory (RAM):
2 GB RAM
Graphics Card:
Modern 3D graphics card with at least 256MB of addressable memory
Storage:
2 GB available space