Dealing with too many false positives during onboarding

Has your organization experienced many 'false positives' in the recent weeks? We have upgraded to a newer version of our sanction check screening process, and now we are flagging almost everyone with a name that could be common among many. This is slowing down our ability to onboard new clients substantially as we are forced to review each and every match manually. I am hoping to find a solution (a tool) that uses an improved matching methodology. We need to comply with AML regulations while not hindering the success of the sales team by preventing them from finalizing their sales processes. Thanks!