Convert point-cloud file to openEXR to improve performance

Techniques
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Converting a point cloud file to openEXR will vastly improve performance. As an example, a 40 million point xyz file that was running at 11 fps jumped to 25 fps when using the openEXR file.

Intel(R) Core™ i7-10750H CPU @ 2.60GHz 2.59 GHz
Nvidia RTX 3060

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I wonder if you could encode it as a HAPQ and get even better?

Obviously you’d lose some precision and you’d need to have a ~6300x6300 file, but I wonder which would have better performance