I can give you specific settings to boost your FPS based on your exact specs.

Do not install Ark on an external HDD. The load times for the maps (like The Island or Ragnarok) are massive. An SSD is mandatory for a playable experience.

Advanced users use these tools to run the Windows version of Ark on Mac, which often receives more frequent updates and better optimization than the aging macOS native build. Essential Installation Tips

If you have a newer Mac with an Apple chip, you might notice that the native Intel-based Mac version of Ark suffers from crashes or graphical glitches. Because the game hasn't been natively updated for ARM architecture, players often use these workarounds:

This is the most popular choice. Once you purchase the game, it appears in your Library. If you are on a Mac, the "Install" button will automatically download the macOS-compatible files.