big slowdown on Mac os X big Sur.

App & System Services Core OS macOS

Julien_B OP

Created Dec ’20

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Case 1: Navigation in the finder
Case 2: I click 2 or 3 times on the apple on the top left.
In both cases, the rainbow wheel appears and turns for about 10 to 15 seconds.

Mac end 2013 - 15 inches
2,3Ghz processor in qu'acore
16GB of Ram DDR3

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