VRAM usage

[TextTL]

I'm having an application that requires open multiple browser instances to show graphics. The machine has 2 4K monitors. Each browser instance is arranged in a portion of one monitor so that they don't overlap one another. Every time, a browser is launch with deck.gl to show graphics, it took roughly 1GB in VRAM. In Deck.GL, what contributes to the use of VRAM? Our displays, the rendered pixels are just about1/3 of the screen space. Does that sound right? Is there a way to reduce VRAM. With 8GB VRAM GPU, when launching 8 browsers with deck.gl, the system becomes very laggy when dragging; this happened when the VRAM usage is about 7.5GB/8GB.

In Deck.GL which contributes the use of VRAM? Is the number of layers matter? I had about 64 layers total (I looked at the deck gl context).

Any suggestion to help with the performance is really appreciated.