Best way to do fairness in DRL but 5 times slower

import accumulate org.optaplanner.examples.tennis.solver.drools.functions.LoadBalanceAccumulateFunction loadBalance;

rule "fairAssignmentCountPerTeam"
    when
        accumulate(
            $t : Team()
            and accumulate(
                TeamAssignment(team == $t);
                $assignmentCount : count()
            );
            $result : loadBalance($assignmentCount)
        )
    then
        scoreHolder.addMediumConstraintMatch(kcontext, - (int) $result.getMeanDeviationSquaredSumRootMillis());
end

rule "evenlyConfrontationCount"
    when
        accumulate(
            $t1 : Team()
            and $t2 : Team($t1.getId() < id)
            and accumulate(
                TeamAssignment(team == $t1, $d : day)
                and TeamAssignment(team == $t2, day == $d);
                $confrontationCount : count()
            );
            $result : loadBalance($confrontationCount)
        )
    then
        scoreHolder.addSoftConstraintMatch(kcontext, - (int) $result.getMeanDeviationSquaredSumRootMillis());
end