This is an interesting example, because in this case- I think it could be seen as being stuck in old ways by a younger person that is excited about new stuff, but it sounds like you actually just have more experience and a broader perspective, and so know when something "old fashioned" can be simpler and more effective than using the latest most trendy method.

I hate having to use what is basically a simple static page but is effectively a large app that is being downloaded and executed client side- it makes it unresponsive.