In order for you to play BioShock 2 Remastered on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
macOS 10.15.4
Processor (CPU):
1.1 GHz Intel Core i3 or greater
Memory (RAM):
8 GB RAM
Graphics Card:
2 GB AMD R9 M290, 1.5 GB Intel Iris Pro 5200 or better
Storage:
22 GB available space