I have issues working with older projects where my parts, assemblies and drawings used custom templates that is missing or my File locations does not point to anymore. It includes bend table templates, custom properties etc. The problem is that solidworks is freezing/using a lot of time searching for these files when I'm working with them which is very frustrating. I can manually replace them to my templates I have as standard today in Solidworks but is very time consuming. Is there anyway to replace all the old templates to my current ones in a more efficient way? Perhaps in a pack an go or similar way?

They were created in Solidworks 2014 and I'm working with SW 2017 SP3 at the moment.