Hi,
The best way for you to verify it is to try to run the latest version to find out. Both us and the Chromium team are constantly working to optimize the performance. However at the same time more and more features are being added to the browser engine constantly as well. So a newer version may not necessarily be faster. On the other hand, the latest version does have better GPU support, so that may give you a performance boost for your specific hardware.
When you test the new version, you can start with our TabbedBrowser sample application since this application does not have a lot of extra code that may negatively impact the performance.
Yes. When you try newer version you can just overwrite the DLLs and comment out your old license. However DLLs in the newer version is not one to one mapped to your version and you may need to change your reference. Please see here for more details on which DLL you should reference:
https://www.essentialobjects.com/doc/common/refdll.aspxPlease let us know how it goes for you.
Thanks!