It's obvious from this and previous posts/topics that you have an issue in your PC with a virus, malware, or drivers, or security or speed up software that might be conflicting with Opera.
I use Opera 29 in several computers without any problems. Other millions of users also use Opera without problems, otherwise the forums would be drowned with topics by now.
Please look for something like that in your PC. Try AdwCleaner, update the graphics driver, disable/uninstall suspicious programs or antivirus to test whether the issues are solved.
Please stop spamming the forums with more and more topics about the same subject. I don't have much more time to help so I'll leave a tip: you can find some info by using a search engine, like, Google "site:forums.opera.com your_question" without brackets.
Opera does not offer bookmarks / Speed Dial export but other browsers might be able to import directly... Like Vivaldi... And MAYBE the Bookmarks file in your Profile is exchangeable with a Chrome or Chromium-based browser Profile. You can try experiment with that, if the Speed Dial isn't moved it might be a good idea to use the Bookmarks manager to move all your SD items to another folder before copying the file.