Render engine question

Is there any way to switch back to the old render engine? On some computers the new render engine is SUPER SLOW.

When I click on the settings icon and select render engine, it just reloads the page in the new engine. There doesn't seem to be a way to switch back to the old one.

Beside I like the old one aesthetically.

Edit: Actually got it to switch to the old renderer, finally. But I had to keep doing it until it finally worked.