Is my Archviz Site ready for HTML5 Implementation?

Hello guys, i just started to learn about Pixelstreaming. I just wonder if i can implement it on myarchitectural rendering site .
I use Wordpress , but i am worried about the Performance, i have already a ton of Archviz Renderings on it. Couls someone suggest me a way to do it?
And is there still a way to export directly from unreal engine in HTML5 with a plugin or something?

You would have to setup a PixelStreaming AWS server or something like that. Export to HTML5 would not be a viable option I think. Checkout Getting Started with Pixel Streaming | Unreal Engine Documentation for more info.