I am scraping web sites with HtmlAgilityPack but some websites run javascript after page load. So HtmlAgility does not help at this point. I have tried selenium web driver and NHtmlUnit and PhantomJS. But they are too slow for my task.
I also tried web browser but for asp.net it is slow and not a good solution for me. Also it does work for a few days after that that site has gived an error: "Javascript must be enabled"
So what do you suggest for me to do scrape those web sites fast enough?