Both Halloween and Christmas updates haven't been optimized for mac users regarding the lag and graphics, however the game is playable and lets hope they will fix this in future updates :)
Seaking method will no longer work, the developers patched it. Therefore you can try the advice people listed or use Snorlax with amnesia and curse. Goold luck
Like the thread he shared said:
- you need to have 351 or more hours played
- you need to own all kanto pokemon and 71 evolved pokemon by you + seen data from moltres, articuno, zapdos and mewtwo
- Dragon membership
- Johto champion
Edit: When i enable full screen the lag is gone, however, the game becomes unplayable. The graphics are all over the place, there are weird dots and what not and the game itself acts strange.