On more than 1 computer, for quite some time (years it seems) Opera will intermittently lock up when I click on a 'Download <something/PDF/thing>' link on a webpage. 'Download this Awesome PDF!' > click > download indicator in the top right shows 'full' (nothing has yet come up on screen) and everything is frozen in the window.

No 'Save As' or 'Download' or anything comes up and when you try to click on anything else in the window (or any tab) you just get the windows sound that means 'you can't do that right now!'

I've attempted to clean up Opera but it doesn't seem to matter on either computer. I've also tried killing random Opera tabs through Task Manager but I eventually hit on one that closes down All open windows and you have to restart Opera and try again.

The last 3 or 4 updates in the Beta and Developer's versions have been slow, Unstable and memory hogs. What the heck happened?? I can use a tab 'suspender' have a couple tabs live and scrolling still stutters, clicking doesn't register and resources showing aren't being pushed at all. Tabs that were left before trying the 'suspender' could take 4 or 5GBs??

I work on a PC and Laptop at the same desk. PC uses Developer and Laptop the Beta. This is how I can test them side by side and see if the problems occur on both...and they do.

Lastly, where did the 'recently closed' button go? I used that ALL the time!!

Much like what's happening to others the performance of Opera, across the board, has been terrible for a while now. Tabs using massive amounts of memory & CPU and even when other tabs are suspended, the focused tab has to be closed and reopened to get it to respond after a relatively short amount of time. I use a PC and a Laptop side by side and whether it's developer/beta/stable, it's all the same. Frustrating!!

On more than 1 computer, for quite some time (years it seems) Opera will intermittently lock up when I click on a 'Download <something/PDF/thing>' link on a webpage. 'Download this Awesome PDF!' > click > download indicator in the top right shows 'full' (nothing has yet come up on screen) and everything is frozen in the window.

No 'Save As' or 'Download' or anything comes up and when you try to click on anything else in the window (or any tab) you just get the windows sound that means 'you can't do that right now!'

I've attempted to clean up Opera but it doesn't seem to matter on either computer. I've also tried killing random Opera tabs through Task Manager but I eventually hit on one that closes down All open windows and you have to restart Opera and try again.

@leocg: I thought I was pretty clear. It always pegs out and it's everything. Shown both using Task Manager and the Opera Task Manager.

@leocg: Using Windows Task Manager I can see what's taking up the CPU already. For some reason, it will suck up all the CPU that's available between all the tabs. So, for v70, I'll have 19/20% CPU for the browser, Tabs will be like..3.1%, 2.3%, 2.1% then 0.x%.

With v71, CPU will peg out at 100%, the broswer will fluctuate...40%>80%>70% but the TABS will show 30%, 5.4%, 4.9%, 4.4%, 4.1%, etc. Essentially, it will just keep using all the CPU it can get and the tabs will fluxtuate to use all of it. occasionally, it will allow the CPU to drop below 100% but will soon go back up again.

@proptop99: Still waiting on some kind of response from the Developers. Disabling extensions, etc doesn't seem to effect the CPU usage. What can be causing the high CPU? What process/procedure is there to test what's causing it?

Any update after 70 still pegs out my CPU at 100%. I go BACK to 70 and it's fine. What is going on with these v71 builds??

@leocg: I'm not sure what you're referring to when you say 'internal task manager'?

Also, went back to v 70.x Beta and resources went from 100% CPU to a high around 40% but usually lower. I also have more tabs open so...seems like the build.

@proptop99: Still waiting on a response or when this is going to be addressed. I'd prefer that the beta not melt my CPU...is it number of windows? tabs? what? It seems to just take whatever CPU it can to keep the CPU at or around 100%.

Pretty much 100% CPU usage all the time....unusable compared to the previous build.

Much like what's happening to others the performance of Opera, across the board, has been terrible for a while now. Tabs using massive amounts of memory & CPU and even when other tabs are suspended, the focused tab has to be closed and reopened to get it to respond after a relatively short amount of time. I use a PC and a Laptop side by side and whether it's developer/beta/stable, it's all the same. Frustrating!!

@leocg It's currently 'Default'. I'm assuming that Developers don't actually answer these questions? I appreciate the responses but the issues I'm asking about aren't 'tweaking' a setting. I have the resources on the systems but the performance issues occur regardless.