Side panel takes long time to open
Pressing F4 to open the side panel. It takes 2-3 seconds before it opens. Closing it takes 1 second. Also when it open/closes it flickers. Vivaldi 1.1.453.45 (Utviklerversjon) dev (64-bit) Versjon ff228a374881cbd34de7a4c15c12681679de2fe0 OS Linux Blink 537.36 (@ff228a374881cbd34de7a4c15c12681679de2fe0)
Do you have thousands of bookmarks in bookmark panel?
Problems with VSync or slow graphics chip on your Linux?
Perhaps not thousands of bookmarks, but certainly in the hundreds.
VSync, what is that? If I haven't heard of it I probably ain't having any problem with it (as I know of).
Graphics card: Nvidia GeForce GTX 650 Ti
Can't say it is slow… perhaps a little. It is running two monitors, one 1080p and one 1440p resolutions.