I don't know the answer, but I'm having the same problem. Projects that used to render fast are now taking forever. I thought perhaps it was my hard drive being too full, but even now after a big clean up, the rendering is painfully slow. Right now, I'm rendering a 15-minute 4k video into the Twitter 720HD preset. Other than Lumetri Color and a bit of a zoom-in, there are no other modifications in the timeline. However, after 15 minutes of rendering it's only half way done. It does this with every project, and to different presets, wheteher it's YouTube or ProRes422. I'm running Media Encoder version 24.6.1 (Build 2) on a M2 Mac Studio. Please help. It's really slowing down my progress.
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