Change DefaultUpdateDefaultReaction to LowUpdateSlowReaction for testing

[xueqzhan]

/hold

Use to test azure performance issue

[openshift-ci]

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: xueqzhan
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[xueqzhan]

/payload-job periodic-ci-openshift-release-master-ci-4.19-upgrade-from-stable-4.18-e2e-azure-ovn-upgrade

[openshift-ci]

@xueqzhan: trigger 1 job(s) for the /payload-(with-prs|job|aggregate|job-with-prs|aggregate-with-prs) command

• periodic-ci-openshift-release-master-ci-4.19-upgrade-from-stable-4.18-e2e-azure-ovn-upgrade

See details on https://pr-payload-tests.ci.openshift.org/runs/ci/fadb3b90-214f-11f0-87b8-446cc8e25dd2-0

[xueqzhan]

/payload-aggregate periodic-ci-openshift-release-master-ci-4.19-upgrade-from-stable-4.18-e2e-azure-ovn-upgrade 10

[openshift-ci]

@xueqzhan: trigger 1 job(s) for the /payload-(with-prs|job|aggregate|job-with-prs|aggregate-with-prs) command

• periodic-ci-openshift-release-master-ci-4.19-upgrade-from-stable-4.18-e2e-azure-ovn-upgrade

See details on https://pr-payload-tests.ci.openshift.org/runs/ci/e7656e90-2150-11f0-934f-b49ac2cd512e-0