Everything here is my opinion. I do not speak for your employer.
Me: Hmm, that kind of UI jumpiness looks like what would happen when a flash disk syncs too frequently. Are you doing all your updates in one big transaction or one transaction per update?
Other person: Er... well, I'm using Bulk Update, that probably makes one big transaction automatically, right? [...] apparently not.
Yup. Flash disk writes just "look" different than other kinds of slowness.
Try Tailscale: mesh networking, centralized administration, WireGuard.
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