Author Topic: Current version slows down Opera incredibly  (Read 5559 times)

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Offline Annvdb

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Current version slows down Opera incredibly
« on: May 04, 2017, 11:09:01 AM »
Avast 17.4.2294 is slowing down Opera Windows 7 64-bit, 44.0.2510.1449 so very much that it becomes nearly unusable.
I'm using both Avast and Opera for many years without problems, this problem clearly came with Avast 17.4.2294. Now I have to shut down Avast in order to use Opera. Could you please fix this?

Offline Eddy

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Re: Current version slows down Opera incredibly
« Reply #1 on: May 04, 2017, 11:32:50 AM »
Perform a repair of avast.
If that doesn't solve it, perform a clean installation of the latest avast version.

Offline Annvdb

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Re: Current version slows down Opera incredibly
« Reply #2 on: May 04, 2017, 12:57:02 PM »
Thank you. Unfortunately both did not help, the problem remains also after a complete uninstall and reinstall. Opera works ok when Avast is disabled and gets terribly slow as soon as Avast is enabled.
BTW I'm not using the Avast VPN and Avast Browser-Add-ins.

Offline Eddy

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Re: Current version slows down Opera incredibly
« Reply #3 on: May 04, 2017, 01:03:42 PM »
Did you use avastclear when removing avast ?

Offline Robert_M

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Re: Current version slows down Opera incredibly
« Reply #4 on: May 04, 2017, 01:08:38 PM »
Firefox 64 53.0 - OK
Chromium 64 58.0.3029.96 - OK
Vivaldi 64 1.9.818.44 - OK
Opera 64 44.0.2510.1449 - DISASTER (FileShield scanning Opera threads like crazy 0-100% CPU)

Offline Annvdb

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Re: Current version slows down Opera incredibly
« Reply #5 on: May 04, 2017, 01:58:40 PM »
@Eddy: Initially not, but now I did. Thanks for this hint, but problem remains the same.
@Robert: Thanks for confirming this problem!

Offline Eddy

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Re: Current version slows down Opera incredibly
« Reply #6 on: May 04, 2017, 02:01:26 PM »
Disable the shields one at a time to see which one is the problem.

Offline Annvdb

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Re: Current version slows down Opera incredibly
« Reply #7 on: May 04, 2017, 02:12:53 PM »
"File System" protection creates these problems. When this is switched off, Opera works fine.
« Last Edit: May 04, 2017, 02:24:07 PM by Annvdb »

Offline Avast user 2017

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Re: Current version slows down Opera incredibly
« Reply #8 on: May 05, 2017, 12:36:20 PM »
The same. But.. On home desktop pc with amd chipset and amd processor this does not occur. On 2 laptops with intel chipset and intel core 5/7 opera lags insanely....

Thanks!

Offline marcus111

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Re: Current version slows down Opera incredibly
« Reply #9 on: May 05, 2017, 07:11:51 PM »
That slowdown seems to affect Chrome browsers. I have 5 computers, 4 running Windows 10 and one running Windows 7 and I have many Chrome browsers installed like Opera, Iron, Cent, Dragon and it takes about 5x longer to start and load pages with all of them ex: Iron opens in 1-2 seconds normally now it takes about 10 seconds to get it to open and to load pages. The problem comes from File System Shield because when disabled they open really fast. It doesn't seem to affect Firefox or Edge.

Offline Robert_M

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Re: Current version slows down Opera incredibly
« Reply #10 on: May 07, 2017, 09:38:38 AM »
After turn on "nested virtualization" Opera speed is back to normal.

Update: Sorry, but this was only one time speedup. All next launches are slow again.  :-[
« Last Edit: May 07, 2017, 09:42:51 AM by Robert_M »

Offline Eddy

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Re: Current version slows down Opera incredibly
« Reply #11 on: May 07, 2017, 09:47:40 AM »
marcus, there is only one Chrome browser.

The others you mention are not Chrome.
They are using the Chromium engine which is entirely different from the Chrome browser.

If the engine is build by e.g. Volvo, it doesn't mean the car it is used in is a Volvo.

Offline marcus111

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Re: Current version slows down Opera incredibly
« Reply #12 on: May 07, 2017, 05:19:46 PM »
Sorry for not having used the proper technical word, but did you get what I was trying to explain? If you did good for you, it doesn't matter if I used the perfectly correct word, I wanted to get a point across. I don't think I was discussing cars either but a problem with Avast File System Shield that is still causing slowdowns with CHROMIUM based browsers not only Opera (on all my computers) that wasn't there before I updated to version 2294. Now carefully check if my wording is right and tell me if it is not. English is my second language by the way and it is not perfect. Have a nice day.

Offline Vlavv

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Re: Current version slows down Opera incredibly
« Reply #13 on: May 08, 2017, 05:00:10 PM »
I confirm this since Avast update 17.4.2294.

It affects Chromium-based browsers (tested on recent versions of Opera and Vivaldi), but apparently not Chrome itself.

Opening a link in a new tab or loading a webpage from a different domain in the current tab now add a 3-4 seconds delay instead of being immediate like before.

Disabling the File Agent solves this. It looks like simply adding the browser installation folder and profile folder in exclusion list isn't enough.

Offline marcus111

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Re: Current version slows down Opera incredibly
« Reply #14 on: May 08, 2017, 10:06:34 PM »
I had to try this. I installed Google Chrome just to check Vlavv post and he is absolutely right Goole Chrome is not affected by the slowdown. Maybe it's a conspiracy...OH NO not another one...