Kids.
Why, when I was running CoSA (AE’s ancestral code) we’d wait a weekend to see ten seconds of one effect on one layer.
While I understand your predicament, I have no sympathy at all. This stuff takes time. And good work takes even more time. Period.
Growing up with AE on ancient machines taught us olde timers how to economize. Pre-rendering at lower rez and using proxy elements that can be made into movies instead of being processed live in the timeline are two of the major timesavers.
You do not need to preview HD material at full rez to get the feel for motion effects. You only need to see very limited frames of HD material to demonstrate look and feel and end results. You get used to thinking in terms of planning your render pipeline. Anything that’s golden (that is not 3D) can be prerendered. Anything that can wait can be proxied with a lo rez version.
Aside from that, your client either needs to understand the existing process or pay to work on bigger, faster, dedicated systems.
bogiesan
This is my standard sigfile so do not take it personally: “For crying out loud, read the freakin’ manual.”