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New Opera update makes Tradingview charts very slow

  • Hi,

    I've already submitted a report but figured I'd take the initiative to post this here.

    The new Opera update (52.0.2871.37 on OS X El Capitan) has slowed the interactive charts on the website to a lagging, almost unusable crawl. They were not like this before the new update.

    Attempting to zoom in/out and shift charts left/right and draw on them is very slow and makes using it too awkward. I don't know what happened in the update but it's put a burden on the functionality of the platform.

    I switched from Chrome to Opera because of this same problem (about4 weeks back). Now unfortunately it's happened here too. It does not happen in Firefox, so I figure it's a complication in the new update.

    I love the browser so hopefully this can be resolved.


  • Just to update this – I have checked and the problem happens in the new updates of Chrome and Opera. It does not happen in Firefox or Vivaldi.

    There is something in the new updates which is conflicting and causing the charts and interface to lag horribly.

  • Hi @ezodi , can you check if your problem is solved in 52.0.2871.40 which was released today? If not, can you give some precise steps on what you do to see the lagging?

  • Hi, @avl, thanks for mentioning it. I've updated it and the problem is the same – still heavier and slower than before.

    I suppose there's some java conflict with the interactive charts (my java is up to date). When I have the platform open with the live chart in front of me, it is very slow when drawing on the chart (using the tools, like the trendlines), and zooming in/out and left/right with the mouse / trackpad. There's just an awkward and heavy delay between action and result / display. That shouldn't be there. Changing from one chart to another is not a problem, but actually interacting with each one individually is too slow to work.

    Perhaps this doesn't sound like a big deal, but when you have to navigate through the charts on different time frames, alter perspectives and customise them, it is important. Something in the .137 update has choked performance.

    Thanks for checking.

  • Hi @avl, I have uploaded a video to demonstrate the difference between Vivaldi & Opera as it is now.

    I'm not sure how clearly the lag comes across in the video, but it's pronounced when using it.


  • Hi, can you post the details found on opera://gpu on your system somewhere?

    Even better if you could also post vivaldi://gpu from Vivaldi (or install an older version of Opera that worked correctly and post those contents) so we can check if anything changed.

    the problem happens in the new updates of Chrome and Opera. It does not happen in Firefox or Vivaldi.

    Opera, like Chrome, is based on Chromium, so it makes sense that an issue found there propagates to Opera. Vivaldi is also based on Chromium, but is currently using an older version, so they don't have the issue yet. Firefox is not based on Chromium.

  • @avl, here is the opera gpu which you can view online

    and the vivaldi

    I can try to get an older version of Opera tonight or tomorrow night. Cheers

  • Hi @avl,

    As requested I downloaded an older version of Opera (ver. 51 - see the link for the screenshot) and it worked perfectly – very fast. So clearly something in update of 52 has screwed it up. The gpu for it is the second link

  • Looking at Opera 51 and Vivaldi compared to Opera 52, in the new update Canvas and Rasterization are not accelerated, whereas they were accelerated in 51 and Vivaldi. Could this be the problem?

  • @ezodi Most probably. Is Vivaldi based on same Chromium version of Opera 52?

  • @leocg, no, @avl said that Vivaldi is using an old version of Chromium. I just wonder if there's a way to manually turn on the acceleration.

  • @ezodi It's enabled in settings?

  • @leocg Can you accelerate Canvas and Rasterization in the settings? I didn't see an option.

    I'm not 100% sure that that's the problem, but it's turned off in the new Opera & Chrome updates, and they are the ones causing the issue.

  • @ezodi I was asking about hardware acceleration in general.

    You should be able force hardware acceleration for Rasterization and Canvas in opera://flags.

    They were turned off most probably because of what i said in your dump of opera://gpu.

  • @leocg - I turned on GPU rasterization in flags and it completely wiped out the graphics in the browser - everything was just a splash of colour. Somehow I was still able to search in flags to set it back to default. That was weird.

    Turning on Experimental canvas did nothing.

    I don't see any other relevant options for Canvas & Rasterization.

  • @ezodi The flag for Canvas would be opera://flags/#disable-accelerated-2d-canvas. However I guess you will need to wait for the problems mentioned on opera://gpu to be fixed.

  • @leocg - Thanks. It says #disable-accelerated-2d-canvas underneath 'Accelerated 2D Canvas', but the option on the right of it is 'Enabled' already. So I don't know what that means, it sounds like a contradiction but I have no idea about this stuff.

  • @ezodi And setting it to disabled made no difference?

  • @leocg - No, it didn't work.

  • and this isn't just a problem with Tradingview. You can see and feel it on the Bitcoin charts at – they never lagged like this before the update in Opera & Chrome

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