Rendering in After Effects (Media Encoder) starts to slow down so much after 2~3 minutes.

Question

When I am rendering my project through Adobe Media Encoder, it is very fast at the beginning but gradually slows down later on. I opened and checked the output folder. It produces frames very fast during the first 2~3 minutes. Almost 20~30 frames per a minute. However, it makes barely 2~3 frames only in the end. Why is this happening? It doesn't matter which project I render. It happens to all projects. Even though all frames have basically same quality and effects. (My projects are not even complicated or heavy.) I googled it already but it seems like no one has this issue. Does anybody know why it happens and the solution?

Rick Gerard · Answer

Something is probably getting loaded up by an effect or by improper memory and resource allocation. We need to have workflow and system details right down to a list of effects used and render settings. A very quick way to show us what effects have been applied to each layer and nested comp is to open up a flow chart and expand all of the layers. Then embed the flow chart.

Your source footage could also be causing slowdowns. MPEG (MP4) footage can be especially problematic.

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