When navigating a discussion on larger devices, animations will appear by default. By contrast, they will be disabled by default on mobile devices. Disabling animations may help to improve performance, whereas enabling them may improve your user experience on the site.
To adjust your animation settings, first Open Your User Settings. In the ‘General settings’ section, there will be options to enable animations on mobile devices and on larger devices (such as desktops, laptops or tablets). Check the boxes for which devices you wish to enable animations on, then scroll to the bottom of the page and click ‘Save’.