The faucet will not stay in place on the sink. It won’t stay tight and we have tightened several times. Also very poor water pressure. We can’t get to same pressure level as we gas with our prior faucet. We love the concept of the spray shield technology but unfortunately we don’t have enough pressure for the feature to fully work. We had the faucet professionally installed and we do not have a pressure issue with other sinks or dishwasher. Is this a design flaw?  It seems to be getting worse.  Purchase 60 days ago.