To recap - faster when the message list is not displayed for a folder which is getting it's initial download sync of messages. Questions: 1. Were you moving the mouse during that period? (other than to start and disable the profiling) 2. You mention "When the focus is on the syncing folder, depending on the sort order the speed is higher." Which sort order is slower? 3. Can you do another profile with 127 beta? We have a few fix https://mzl.la/4dKv9ld since your profile with version 125 beta.
Bug 1891416 Comment 8 Edit History
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To recap - faster when the message list is not displayed for a folder which is getting it's initial download sync of messages. Questions: 1. Were you moving the mouse during that period? (other than to start and disable the profiling) 2. You mention "When the focus is on the syncing folder, depending on the sort order the speed is higher." Which sort order is slower? 3. Can you do another profile with 127 beta? We have a few fixes https://mzl.la/4dKv9ld since your profile with version 125 beta.