Hi,
I have 5+ Years of experience manage SQL server database in production environment win different Versions and Editions ( SQL server 2000, 2005, 2008, 2008R2, 2012, 2014, 2016). I have a good expertise in solving performance issues and check why we are getting wait types and locks. I will check SQL server configuration if not configured I will configure with Microsoft recommended best practices to avoid performance issue. Please setup a call to discuss issue in depth and work to resolve the issue.