Hi.See the post of @esas on page 634. Tried and true workaround...
Download the Ren´py or WINE:
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. Download the the stable version 1.8.3 and let it to do it stuff. Wine is making a Wine prefix file on your Mac and it can be used to play allmost everything, Unity, RPGM and some! And it´s not a emulator, so it doesn´t take so much space than some other softwares. I didin´t have any lag even when i played Artifact and i had some work systems, safari, mozilla, mail and then some open.