How to switch IE11 to IE9?

There are times when you just have to have older versions of IE:
https://www.sevenforums.com/network-s...-insecure.html
Makes ya cringe - don't it?

instead of sticking with IE11, you should just roll back to IE10, it is fast, safe and secure IE9 is not as secure as IE10 and you most certainly do not want to go back to IE8 as it is much worse than IE9

AddRAM said:

If you`re not happy with any version of Explorer, just install and use Chrome or any other browser you like. I rarely use IE myself.

I using IBM Websphere software, only IE6 and IE9 support for browser.

So - you could have IE11 on the laptop for day to day usage...
...and IE6 inside a frozen XP Mode VM that is isolated from the host.

You will just have to try it to see if it is fast enough for you.