The central loop calls the per-plate update for every visible plate ~100 times
a second, and the plate's own throttle sat at the bottom of the function. Above
it ran the whole classification: a GetAlpha call, a castbar IsShown, a cast
lookup, and one or two libthrottle:Get resolutions -- all to work out which
throttle applied, on plates throttled to 10fps that were going to return
anyway. Forty plates makes that four thousand times a second.
Add a cheap gate first, against the floor across all four throttle categories.
Nothing that would have updated can be turned away by it -- a plate past its
real throttle is necessarily past the minimum -- and the category-specific gate
still runs after the classification, unchanged. Event flags are read before
both and bypass both, as they did before.
libthrottle:Get is not a lookup: it walks the saved variables, a defaults
fallback and a preset table, and can build a "<category>_custom" key. Resolve
the four categories in CacheConfig instead, where config changes already land,
and read them from cfg on the hot path. That covers the two calls in the
castbar branch as well.
The castbar hide moves below the cheap gate, which is safe rather than merely
tolerable: a plate showing a castbar sets isCastingNonTarget, which selects the
castbar throttle -- one of the four the floor is derived from -- so it always
clears the first gate and reaches the hide at its normal rate.
Brues
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