Form load performance & media upload delays — any ideas?

Hi everyone, hope you’re doing well!

I’ve been building some forms that include large media uploads, and I’ve noticed that on certain mobile devices the form takes much longer to load or sometimes stalls entirely before submission. It reminded me of a discussion I read about how large installation files and heavy cache usage can impact performance and resource handling.

So I wanted to ask — when forms load slowly or hang during media uploads, do you usually look at device memory, browser cache handling, or server response time first? And are there any best practices you follow to isolate whether it’s a client-side delay versus something on the forms platform itself?

Would appreciate any tips — thanks!