Most of the time when I browse with librewolf, all sites I refresh are ready after max 1 second (usually its just a blink and a website is fully refreshed) But sometimes (few times a day) librewolf refreshes exactly the same websites for like 5-15 seconds. And when it happens, its not a matter of one website, as all of them refresh this long. When I watch activity under "htop" I do not see any cpu hog'ing from librewolf process. It behaves as usually, taking couple % usage of one core once in a while.
And when I open a completely new website in librewolf it usually takes at least 30 seconds (often much more, ut to 1 minute).
Like right now, I opened librewolf.net (for the first time) and it took like 40 seconds to show its content.
Anyone have a clue what is happening or how to trace the root of this behavior?
I'm on i7 with 16GB RAM running PCLinuxOS Xfce system.