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high sierra to mojave

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    Fusion Drive High Sierra to Mojave Slow-w-w-w now

    Hi, I upgraded my iMac from High Sierra (HFS+) to Mojave (APFS). Now it’s so slow it’s unusable. Right now, I’ve booted from an external drive with High Sierra. Anyone comment on where to go from here? My specs: Fusion drive iMac "Core i7" 3.5 27" (Late 2013) Identifier 14,2. Thanks...
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