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What you are seeing

During and shortly after AgenShield is installed — or while an update is applying — your Mac feels sluggish. Applications take longer to open, the update itself runs for several minutes, and the AgenShield dashboard is slow to respond.

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What it means

When AgenShield first starts, it takes an inventory of everything already running on your Mac so it knows what was there before it arrived. On a development machine that can be several hundred processes, and the inventory has to identify each one. On a busy Mac — many browser windows, several coding assistants open at once, other security software also installed — that inventory competes with the installer for the same machine, and both take longer. Your Mac is not at risk during this period, and nothing is being blocked incorrectly. Approving the extensions completes setup; until your organization’s policy has been delivered and applied, AgenShield watches without blocking anything. Either way the slowdown is startup work, not enforcement.

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How long it should last

If things have not settled within about ten minutes, that is worth reporting.

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Affected and fixed versions

Versions up to 2026.8.4 could get stuck in this state much longer than they should: the startup inventory could repeat every thirty seconds instead of running once, and could keep running alongside a duplicate set of background checks that should have stopped as soon as the security extension came up.

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What to do

1

Give it a few minutes

Let the install or update finish and wait a couple of minutes. Do not restart the Mac mid-install — the extensions are still being approved.
2

Approve the extensions promptly

The slowdown lasts longer while AgenShield is waiting for its security extension to be approved, because it falls back to slower checks in the meantime. Approving in System Settings shortens it.
3

Close what you do not need

Quitting a few browser windows or idle coding assistants during the install measurably shortens it on an already-loaded Mac.
4

Update to the fixed version

On 2026.8.5 or later the startup inventory backs off instead of repeating, and the duplicate background checks stop as soon as the security extension is running.

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How to confirm it has settled

Open AgenShield from the menu bar. Once it reports the security extension and the network extension as active, and your organization’s policy as applied, startup is complete and normal responsiveness should return.

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A separate cause worth ruling out

If your Mac is slow all the time, not just around an install or update, that is a different problem. Check whether the Mac is short on memory — open Activity Monitor, choose the Memory tab, and look at the Memory Pressure graph. A Mac that is consistently under memory pressure will feel slow regardless of what AgenShield is doing.

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When to escalate

Contact support if, on 2026.8.5 or later:
  • the slowdown lasts more than about ten minutes after an install or update, or
  • it returns every time the Mac wakes or restarts, or
  • an update takes longer than about five minutes to apply.
Include a diagnostic bundle — see Collecting diagnostics. It captures the startup timing we need and saves a round trip.