[Bug 43246] New: King's Bounty: The Legend suffers from performance issues

https://bugs.winehq.org/show_bug.cgi?id=43246

Bug ID: 43246
           Summary: King's Bounty: The Legend suffers from performance
                    issues
           Product: Wine
           Version: 2.1
          Hardware: x86
               URL: https://www.fileplanet.com/191666/190000/fileinfo/King
                    's-Bounty:-The-Legend-Updated-Demo
                OS: Linux
            Status: NEW
          Keywords: download, regression
          Severity: normal
          Priority: P2
         Component: directx-d3d
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail]
   Regression SHA1: 15d53761a5fbfc12fc5f9974c029dace00eab33d
      Distribution: ---

Created attachment 58554
  --> https://bugs.winehq.org/attachment.cgi?id=58554
terminal output

The game runs much slower than it used to: animations, character and mouse
movement are way too slow.
Reproduced the issue with nouveau/mesa 17.1.3 and nvidia binary drivers 381.22.
Disabling anti-aliasing and lowering detail level to the minimum doesn't help.

According to my testing the commit which caused the slowdown is

commit 15d53761a5fbfc12fc5f9974c029dace00eab33d
Author: Henri Verbeet 
Date:   Tue Jan 31 15:47:10 2017 +0100

wined3d: Do not pin system memory in wined3d_buffer_load_location().

Maybe a duplicate of bug #42588, although the symptoms are different.
With the previous commit the game runs much smoothly. 
For comparison, in Wine 2.11 I'm getting only 4-5 fps when using nvidia 381.22.
Before the regression Wine gave me 32-36 fps.

Steps to reproduce the issue with the demo:
1. download and install the demo, install native d3dx9_33.dll before launching
the game.
2. in the main menu start a new game, click <Next> on the character selection
screen, press <Skip>. You are in a training chamber: run around in the room,
rotate the camera using the right mouse button and observe how sluggish the
game is. You can save the game here so you can reproduce the issue more easily
the next time you enter the game.

KingsBounty_TheLegend_Demo2.exe (682 MB)
sha1: 7b60066a63cd4ee8a242347ebc1802a60453d9b2

Wine 2.11
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce GT 730/PCIe/SSE2
OpenGL core profile version string: 4.5.0 NVIDIA 381.22