Open browsers with difference proxies

Hi bro,

Can I open browsers with difference proxies?

I search on Google, a lot of coder suggested to use HttpWebRequest, but maybe some functions will not work as a browser:
- Maybe some Javascript/JQuery ... cannot work smoothly
- I cannot run my custom Javascript inside website, after page loaded
.....

I'm trying to use Chromedriver & Selenium. But performance is the big problem. As you know, almost of CPU & RAM will spend for graphic and something else ...

Thanks