A couple of things happened today that make this game now run normally. First I got a new, faster machine with a four-core I5 CPU with 8 GB memory and an SSD and an AMD/ATI free standing GPU with 2 GB on board memory. Then I got an update to wine. Wine (beta) is now at wine-1.9.10.
Near as I can tell, it is running exactly as if I was running on Windows. My saved game which was running at 10x is now running at 1x and seems to be slightly faster than before.
All things come to him who waits, eh?
Of course with the SSD the game loads in nothing flat as do saved games. Backups to rotating storage, of course.