Vivaldi was created after the developers of Opera browser thought that the browser was lagging behind to become a fast browser on limited hardware. Thus, a lot of improvement was implemented in Vivaldi to make it more appealing to users.
Speed and Stability
Vivaldi is based on the Blink engine (used by Chromium and Google Chrome) which makes it fast and stable. However, it still depends on the user’s device configuration.
To address performance issues, Vivaldi offers lazy loading which hibernates individual tabs and Tab Stacks. When ‘Lazy Load Restored Tabs’ is enabled, all restored tabs except pinned tabs (can be included through settings) are lazy-loaded. When you hibernate a tab, the browser will discard that tab and replace it with an empty tab. This will reduce the browser’s memory usage. To exit from hibernation, you just need to revisit the tab.
The latest update on Vivaldi 3.7 further improves browser loading speed. Now the browser tabs load twice as fast as compared to the previous version.