You can safely expect the same performance in Wordpress as you do exported as HTML5 on your computer.
No jaggies, no pixels, 100% vector (if you are using the vector, pencil, or shape tools). When you export a oam widget, you’re exporting the full CSS, JS, and HTML that would normally get in a HTML5 export but it is zipped up in a package that is easy to upload to Wordpress as a single file.
So install the plugin, upload the OAM exported from Hype, and give it a go: Tumult Hype Animations Wordpress Plugin … and of course let me know if you have any issues.