Icewind dale 2 freezing

Hi there. First time poster.

I’ve used Lutris on my steam deck for a while now. Most games tend to work with a little tweaking.

Icewind dale 2 is not the case. I’m not exactly tech savvy but have installed it via gog. It loads up and starts. Plays the cinematic. Then lags like nobody’s business. Takes a good 10 seconds to click something. Unplayable like this.

Was hoping somebody had worked out how to plays this

Duplicated thread. A solution has been proposed here: Icewind dale 2 - #5 by vv222