Invoice Approval Group Ruleset

Hi,

We want to set-up our approval rules in a way that if any one in the Approval Group approves then that is sufficient. Approval notification to be sent to all the members in the Approval Group. The below is our current Rule-Set used and the setup:

We have used the "InvoiceApprovalRuleSet".

To achieve the outcome do we need to move the rules to "SingleTypeParticipantInParallelMode"? If no then please suggest alternative.

Some of the Invoice approval rules have Job Level Hierarchy based rules as well. Will the performance of those rules be impacted if I change the ruleset for these rules?