+1 Here is a good example of how bad Vivaldi font engine is/how good Firefox font engine is: Vivaldi Firefox https://forum.vivaldi.net/topic/26087/bold-fonts-blurry-small-continuous-issue

@tommytom2k2 Thanks for your information, very helpful for others.

Might be useful to prevent Vivaldi slowdown when open/loading multiple tabs together, & reduce rendering bottleneck problem for weaker PC.

@Gwen-Dragon I have filed a bug report and included all info I could think of. Thanks for your help.

Same, without problems Last version stable, Win 7 32

@granjique Do you have switchable graphics on the system (i.e. integrated GPU + discrete Nvidia GPU)? If so, try going into the Nvidia 3D application settings and manually configuring Vivaldi to run on the integrated graphics instead of the Nvidia GPU, then try it again and see if anything changes. If it doesn't, restart the system and retry.

Thanks. One extension made trouble.