It is a great idea to pre-warm a tab when mouse cursor hovers it in the tab bar. This way, if user ends up clicking on a tab, it will be already loaded and will be immediately shown (and loaded if discarded, for example in low-power mode). In order to decrease the load when user moves cursor over multiple tabs quickly, debouncing technique could be used.
Tab warmup on hover works this way in Edge, and also in Firefox (explanation). So it will be great if Orion browser incorporated similar technique.
Tab warmup on hover could greatly improve the perceived performance and responsiveness in the browser, and is already used in many other major browsers.
