Performance regression for text rendering

There was a recent release or flag change which introduced a performance regression for text rendering.
Default ingame chat (which uses various text layout methods) now occasionally has spikes of around 6-10ms.

TypesetterDynamicDEPRECATED methods are significantly slower than they were before.

Attached are some microprofiler shots.

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How recently is “recently”? Several weeks ago we enabled the new typesetting pipeline which is faster in almost all cases except for a couple of pathological cases. Last week we tried to turn on another change which ended up having to be turned off.

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Started getting complaints a few days to a week ago.
You can test it for yourself here: RoBeats! 🎧 Music + Rhythm + RPG - Roblox

Does TypesetterDynamicDEPRECATED mean that the flag is off?

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I’ve noticed the default text box(es?) have been spiking, could the filter system be a cause, and/or involved in any way with this issue?

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