*Note that I'm neither associated with the app nor the developer of it. Remember to log out the other user, to unlock the whole potential of your mac. If that all doesn't help, then create a new user, just for fortnite. If not it will clean the memory and give your mac a ram boost, which will radically improve your experience in Fortnite and most other tasks, which need a lot of ram.
This will allow the app to check every ten seconds, if the selected threshold above is still available. Then tick the box below, so both boxes are ticked. For the first one, set the threshold level to the maximum (which is 2457mb). Open it and go to the preferences of 'Memory Clean'. While Fortnite relentlessly evolves on PC and consoles - introducing new locations, a new weapons system and new enemies - Fortnite on Mac. Set everything to low in the graphic settings, exept the 3d resolution, which you set to 720p.(Maybe you can experiment setting it to 1080p.) Then download the app 'Memory Clean'* from the App Store (free). For Fortnite players on the Mac, time has stood still.
Freezed for me as well, but now I found a solution.
