[Process] Fix #8746 : slowness added in unit tests since #8741
[Process] Revert change
merged branch romainneutron/slowness (PR #8749)

This PR was merged into the 2.2 branch.

Discussion
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[Process] Fix #8746 : slowness added in unit tests since #8741

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #8746
| License       | MIT

Commits
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8c4bae3 [Process] Revert change
8d9c7c6 [Process] Fix #8746 : slowness added in unit tests since #8741