PYTHON-2584 Use large localThresholdMS to fix test_load_balancing (#595)
PYTHON-2584 Use large localThresholdMS to fix test_load_balancing (#595)


ShaneHarvey/mongo-python-driver,mongodb/mongo-python-driver,mongodb/mongo-python-driver,ShaneHarvey/mongo-python-driver,ShaneHarvey/mongo-python-driver,mongodb/mongo-python-driver