I have been having a lot of issues with a site running this theme where it would frequently crash. The site is running minimal plugins, so I wanted to check the theme to see if there were any issues with it.
Using the WordPress Theme Check plugin, I found a lot of depreciated functions and direct PHP filesystem calls, where WP_Filesystem methods should have been used. Also a lot of base64_decode used where it is not allowed.
I realize that not all of the issues presented by the Theme Check results are going to cause a site to slow down or even crash, but I have to imagine that some of the depreciated functions at a minimum should be updated.
Is there a timeline or at least a quick fix for this?