In order to play Bloons Adventure Time TD on macOS with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
OSX 10.13 (64bit) or newer
Processor (CPU):
2Ghz or better
Memory (RAM):
2048 MB RAM
Graphics Card:
OpenGL 2.0
Storage:
2048 MB available space
Sound Card:
Mac compatible