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yep we can always make it faster! it's always a tradeoff to whether folks want to use CPU or not. The faster you sync the more people complain about hurting battery life. Downloading >100k items over an archaic protocol just takes lots of processing.

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Have you considered downloading just the envelope of each email very quickly at the start (takes 2-3 seconds for me with 3,000 emails) and then lazy loading the rest either when they're loaded by the user or slowly over time? Even downloading hundreds of thousands of items would take only a minute of high CPU usage.

Yep we've thought of that but it turns out to not make the experience much better. (Local search won't work, you don't get snippets, etc.)

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