Voice-over slow to respond on webpages with embedded video content

One thing I’ve noticed lately is that a lot of websites are embedding video content and images onto their webpages, making voice-over slow down, freeze or become unresponsive.
This is even happening when enabling reader mode, and I usually have to close down Safari and restart it which doesn’t always work either.
If there’s any feature I’d like to see in the next voice-over update, it would be the ability for voice-over to skip over videos and images which it can’t process, hopefully this will make it respond better in these cases
Thoughts?