Choppy/Laggy Graphics

[RinDiddy]

I've seen other posts possibly related to what I am experiencing. I'm looking to find a different route.

I was playing this game last fall with 0 performance issues. None at all it worked perfect. Today the graphics are laggy and I see black boxes on the screen periodically. I am running on a clean install of the most recent stable version. Vanilla.

What settings should I adjust to get the game back to how it was working last fall?

I do not want to update software, upgrade hardware, etc. I'd like to revert the graphics back to how they worked an update or two ago.

Thanks in advance.

[Jap2.0]

52433

Try the latest beta (0.18.4), and if that doesn't change anything post a log and screenshot with the debug (F4) option show-time-usage.