So I did some testing using the built-in developer tools on the support.com website and it seems that the issue lays in the JS loading times. I had an extension enabled (Ublock Origins Extras) that was causing the load times to increase exponentially, I disabled the extension and recreated my work environment and seems that the tabs memory has not increased. Currently the tab is sitting at 166mb, still very odd that all of a sudden that extension that has been enabled on previous builds of Opera is now acting up, plus that extension was updated regularly. Very odd.