Vivaldi stalls and becomes sluggish

tsed

Hi all
I am having the issue that Vivaldi sometimes becomes extremely intermittent and hardly usable (scrolling, loading ...) all of a sudden, that is.

I enjoyed (like for the last 2-3 years) using this browser (when it works fine) an congratulate the team for their work.
However, I suspect that the thing is just too overloaded with features.
I just want/need/use a browser - I don't need a mail and news client and what have you.
Vivaldi must be doing stuff in the background (like checking for updates or what do I know ??) which brings it to it's knees.
How can I turn that off? (I can't, right ?)
I am really very annoyed with this issue and fear I will have to switch browsers in the end.

No, I do not use any extensions, no syncing and no other functionalities than the web broser itself.

Any ideas or hints ?

DoctorG

@tsed Welcome in our Vivaldi Community

Enjoy browsing with Vivaldi.

Some useful links for you:

DoctorG

@tsed Ideas? Can be cause by: Low memory, too many tabs and windows open, extensions causing slowness, broken browser profile, GPU driver incompatibility, Desktop Manager, Display Server and more…

Please check Troubleshooting issues.

DoctorG

@tsed After you checked all items in Troubleshooting issues and that did not solve your issue, tell us more:

OS version and build
Installed third party security tools like Antivirus, Internet Security etc.
Connection
f.ex LAN, WLAN, Mobile, VPN, Proxy etc
Installed extra codecs in OS
Installed third party ad/tracker filter or blocker
Installed latest chipset/GPU driver from graphics producers website
Vivaldi version
Open page vivaldi://about
Use of Vivaldi ad/tracker blocker
Activated block lists
Info about changed settings in page vivaldi://flags
Installed extensions
Open vivaldi://system
Section extensions
Button Maximise…
Copy the items
Paste with </> button
Info about GPUs
Open vivaldi://gpu
Hit button Copy Report to Clipboard
Paste with </> button
Updated DRM codec
Open vivaldi://components
Scroll down to "Widevine Content Decryption Module"
Post version number here
Try to update Widevine with "Check for Update" button
Info about media usage
Open vivaldi://media-internals
Click on Copy to Clipboard
Paste with </> button
Visit the following links and tell us which options are selected for the selected flags:
vivaldi://flags/#ignore-gpu-blocklist
vivaldi://flags/#disable-accelerated-video-decode
URL where issue happens and if a player is used on webpage, the setting for video or audio format
Information if a Vivaldi downgrade was used before with current browser profile

tsed

@DoctorG thanks for the input.
As I mentioned I do not use any extension.
My computer works fine. Everything else works fine and is very fast. Vivaldi is very fast as well ... most of the time, that is.
It is a temporary phenomenon that kicks in all of a sudden. (while everything else OS/Desktop/Apps works fine and fast) I can open a different browser or app, which goes quick and without any issues, while Vivaldi is acting up this way.
I had many many more tabs open and everything was fine. No problem for Vivaldi.
It is definitely not resource usage related.

It is not related to any specific web site(s) either.

It can actually happen even when I have one or two tabs open and nothing else running on the computer.
Vivaldi simply decides that now it will stall for a second and react only every other second

My guess is, it is doing something in the background