Win 10, AE 17.2, AMD Ryzen Threadripper 3960X 24-Core, 128GB Ram, 2x 3080, 2TB SSD for AE Cache. My ARRI files are in the newer MXF wrappers at 4448x3096. Caching obviously helps but i can't help but wonder why they are so much slower than other RAW files. R3D are much quicker to decode for example. I'm not expecting realtime here but 2 seconds per frame on my system is painful. I've got numberous10 second sequences that are taking 8 minutes to cache each. I think I'm actaully going to render out EXRs from Resolve as it's that painful to watch it chug through. I noticed that Resolve has two options to decode ARRI RAW - Resolve's own and ARRI's. Resolve's is much quicker so I'm guessing AE uses the slower ARRI version. I think this is where the problem lies.
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