Not experiencing it, but there are a few things you can try.
Hit shift + esc in Opera ot open its task manager to see what it reveals is using up your ram. Test without extensions too just in case one is triggering the issue.
Make sure Opera's battery saver feature is off. It can cause low-memory warnings if enabled and active (like on a laptop running on battery).
Goto the URL opera://settings/system disable hardware acceleration and restart Opera. Try using Opera like that for a while to see if there's a difference. If so, it might indeed be GPU-related. You can launch Opera with the --disable-gpu command-line switch instead if that's easier.
i thought you meant opera account.
I tried making an account and syncing but it doesn't sync download history and speed dial, or tabs open.
but thank you for your help. :), if you find any fixes for it can you let me know
hopefully its just a bug in the current opera and would be fix in the next update
Locate a file named "default_partner_content.json" , for example on my pc it's in "C:\Program Files (x86)\Opera\25.0.1614.50\resources"
We can edit this file before but unfortunately it doesn't work in the latest version (25.0.1614.50 as I typing) any more. But we can still remove all (but Google) the default search engines by rename or delete this file. Please note you need to close your Opera before you do that.
After you rename/delete that file and restart you opera, you'll notice that the only build-in search engine left is Google, the other four are gone. So you can go ahead and add your own Wikipedia (in the language you prefer) search engine and assign letter "w" to it
You can't remove Google or change the letter g or set your own search engine as default. But I think that's not your concern. This method should work, but I'm not sure for how long. They did remove the ability to manually edit the file in the latest update, there's no guarantee that they won't hard code everything into the next release. When that happens, I recommend switch to Google Chrome (or Chromium if you prefer open source) - Opera is based on Chromium anyway so you won't feel much difference, and you will be given full access to the search engines which means you can do whatever you want with the default ones, and you can set any of your custom ones as the default.