Flash player hardware acceleration

[minimoose]

I was getting major lag in firefox when watching youtube videos in 4K ONLY WHILE switching to full screen, after a few seconds it would go away, so I disabled hardware acceleration and it went away, however videos seem to be much lower quality even at 4K, is this a thing?  Or am I imagining that turning off hardware acceleration makes the quality worse, anyone know?

[Grave]

Hardware acceleration just allows drivers to process the video more directly, allowing for a cleaner/less grainy experience usually.

It may take more resources or cause problems due to I don't know what, specifically in full screen. I've had this problem as well and had the same results, so yeah.

To elaborate a bit:

 

What is hardware-accelerated scaling?

Although Flash Player can display high-quality video and images by itself, hardware-accelerated scaling uses the video or graphics card on your computer to display images and video more clearly and quickly than Flash Player can on its own.

Will hardware-accelerated scaling work on all computers?

For hardware-accelerated scaling to work, you need Microsoft DirectX 9 with VRAM 128MB for Windows and OpenGL for Apple Macintosh, Mac OS X v10.2 or higher. There might be compatibility issues with older hardware and drivers. (See Flash Player system requirements.) With older versions of Flash Player, you should not see dramatic changes as the player reverts from hardware-accelerated scaling back to software scaling.

If I have display problems with Flash Player, what should I do?

If you have display problems with Flash Player, such as poor picture quality or slow display times, deselect Enable Hardware Acceleration in the Display panel. This should eliminate hardware or driver compatibility problems with Flash Player. Flash Player then uses software to scale and display the content.

How can I display this panel again?

To view the Display panel:

1.Right-click (Windows) or Control-click (Macintosh) the application image during playback.

2.From the context menu, select Settings. The Display panel is the first panel shown.

Came from some Adobe help pdf.