https://bugs.winehq.org/show_bug.cgi?id=38779
--- Comment #3 from Béla Gyebrószki gyebro69@gmail.com --- (In reply to Piotr Caban from comment #2)
I've sent a patch that improves setlocale speed little. Could you please give it a try?
(It was committed as e9eec98d5c74fb816ee4615d437aefb0d336de92). I'm still planning to optimize the function more when I have time.
Yes, I noticed that your latest patch roughly halved the loading time in Homeworld 2 demo :) I think Homeworld: Remastered Collection on Steam has the same problem, although it doesn't make use of msvcr70 but msvcr110, loading times are much longer in the remastered edition than in the demo.