Change Rendering Settings

In case you're experiencing technical issues with Stremio like: not being able to start it, UI freezing, performance issues, etc., you can try tweaking  internal settings by setting following envionment variables.

Rendering loop

Render loop can be configured through the QSG_RENDER_LOOP environment variable there are three options available:

• basic
• windows
• threaded

If you want to run stremio on older hardware you might try setting this variable to basic.

OpenGL

The loading mechanism can be configured through the QT_OPENGL environment variable and the following application attributes:

• Qt::AA_UseDesktopOpenGL Equivalent to setting QT_OPENGL to desktop.
• Qt::AA_UseOpenGLES Equivalent to setting QT_OPENGL to angle.
• Qt::AA_UseSoftwareOpenGL Equivalent to setting QT_OPENGL to software.

In order to set this variable simply use setx command as described in the Angle chapter

More about this setting you can find here

https://doc.qt.io/qt-5/windows-requirements.html

Angle

To switch ANGLE platform all you have to do is add environment variable and it is pretty easy! Awesome :-)

Please follow these instructions in order to switch ANGLE platform

1. Click start button
2. Click All Programs followed by Accessories
3. Right click Command Prompt and run it as a administrator
4. Paste there following command 
   1. setx QT_ANGLE_PLATFORM d3d9 to use direct3D 9. 
   2. setx QT_ANGLE_PLATFORM d3d11 to use direct3D11. 
   3. setx QT_ANGLE_PLATFORM wrap to use direct3D11 software rasterizer. 
5. Now you can restart stremio and it should work without any problem!

More about this setting you can find here

https://wiki.qt.io/Qt_5_on_Windows_ANGLE_and_OpenGL