Weird ghosting / duplication effect with R3F postprocessing N8AO

Questions
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1

When I use perspective projection I get a weird ghosting / duplication (or offset) effect when using N8AO. This is not visible with an orthographic projection, but my guess is that this is because I am so far zoomed out that it’s not visible, because when I zoom out with the perspective camera the effect goes away (is hidden).

See screenshots.

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2

This is caused by altering dpr on the Canvas (for example throttled by performance being lowered in the context of R3F’s PerformanceMonitor.

I can see why this happens, but if anyone has a solution to this, like if it’s possible to recalculate the n8ao map somehow, please let me know.

<Canvas dpr={dpr} ...>