I think maybe an alteration of your Video Mode (resolution of the FeralHeart window) could possibly help with the crashing. That or we could see if you still are experiencing the crashing issue after the resize. You will need to shrink the window size. Here is how to do that:
How to change the size of your UI: Go to C:\FeralHeart\ogre.cfg and open the ogre.cfg file in Notepad. You should get something that looks like this: Render System=OpenGL Rendering Subsystem
[OpenGL Rendering Subsystem]
Colour Depth=32
Display Frequency=N/A
FSAA=4
Full Screen=No
RTT Preferred Mode=FBO
VSync=No
VSync Interval=1
Video Mode=1600 x 1024
sRGB Gamma Conversion=No
[Direct3D9 Rendering Subsystem]
Allow NVPerfHUD=No
FSAA=None
Floating-point mode=Fastest
Full Screen=No
VSync=No
Video Mode=800 x 600 @ 32-bit colour
sRGB Gamma Conversion=No
What you will need to do is, under the [OpenGL Rendering Subsystem] and the [Direct3D9 Rendering Subsystem] sections where it states "Video Mode= (width resolution value) x (height resolution value)", change those numbers to a lower value. I would recommend trying 800 x 600 to start out with, or even smaller if you think that would help for testing purposes since I believe the default value upon fresh install is 800 x 600. Once you are finished typing in the Video Mode values on both Rendering Subsystems, save the file and run the game.
If the issue still persists, it is likely a problem with hardware. Before we look for possible hardware solutions, I would recommend doing a complete reinstall of the game again, as this is a common solution to crashing issues. But when you try it again, make sure to delete your FeralHeart folder completely to make sure there aren't any residual files left over from the old installation incase they could be corrupted somehow and causing the crashing.