An alternate header following my post to the original thread!
As for 'slow': for a lethargic, glacial, infuriating, nauseating, completely unpleasant experience, try Apple's iCloud via the web interface. A truly horrible experience.
FMPA 12 is slower than FMPA 11.
You have to greatly simplify your layouts - e.g. forgo conditional formatting, minimize displaying unstored calculated fields, etc. - in order to regain some of the speed lost. But some things like responding to key-presses in dialogs seems slower also. And these can't be optimized further.
Hopefully, the next update will address some of the slowdown.
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