Goes off the rails in Yosemite and El Capitan

I’ve been playing Civilization since the 90’s and never had issues on a PC. Have switched to a Mac a couple years ago and this game has never played right. In Yosemite it started to get buggy-stopped allowing me to pick the level (settler, warlord, etc) on the other civs. In both Yosemite and El Capitan it still plays, but selecting the level of the other civs still does not work and in a quick play just for domination I can be blowing the other civ out of the water and it always shows a very low score for me. This is progressively getting worse and I expect it to stop working any day. talked to Aspyr and they were zippo help and couldn’t figure it out.

Sad to say my many years of enjoying this game are probably coming to an end.

PJTinIL about Civilization IV, v1.0