Hey, ive tried to search this issue but didnt find anything.
I have KDE and my Firefox, esp YouTube feels sluggish? I mean especially maximising and closing videos. It’s quite slower than on Kubuntu which was also KDE.
Im not sure if its because of Firefox (I used Brave before). Or is there something else in my settings that is wrong?
I haven’t changed any default system or kde settings yet.
Please provide some system info as a point of start for anyone capable of assisting you to have something to hold on. Run the following and post the URL:
inxi -zav8 | eos-sendlog
I have seen online, people saying that Google slow down youtube for Firefox. I have no idea whether it’s true or not but you could try installing a user agent switcher extension and using the following agent.
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.36
@MyNameIsRichard honestly, I dont know what that means 
first, I ll see if someone finds and problem in my link (above) or will download Brave again
Not sure if it is a power management issue which makes your system to feel laggy:
Speed (MHz): avg: 1096 min/max: 411/4548 boost: enabled scaling:
driver: amd-pstate-epp governor: powersave cores: 1: 1096 2: 1096 3: 1096
4: 1096 5: 1096 6: 1096 7: 1096 8: 1096 9: 1096 10: 1096 11: 1096 12: 1096
bogomips: 47922
Speed (MHz): avg: 1096 min/max: 411/4548 boost: enabled scaling:
> driver: amd-pstate-epp governor: powersave cores: 1: 1096 2: 1096 3: 1096
4: 1096 5: 1096 6: 1096 7: 1096 8: 1096 9: 1096 10: 1096 11: 1096 12: 1096
bogomips: 47922
Could you post also:
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
cat /sys/devices/system/cpu/cpu0/cpufreq/energy_performance_preference
What Richard was saying is that you can try, with the help of a third party extension, lie about the web browser you use to the website you’re connecting to.
Brave is based on Chromium. Chromium is the web browser engine created and maintained by Google. Google has some extra bits and bobs that Mozilla Firefox doesn’t really have because they are weird, non-standard and basically only Google has. Sadly for Firefox, while only Chromium has these extra things, most other web browsers like Brave, Vivaldi, Opera or Microsoft Edge all use Chromium as their base. Mozilla Firefox doesn’t use Chromium as its base, so these non-standard features are actually the norm. Under YouTube, though, in my experience, such features aren’t really driving the weird slow behavior.
As a way to drive further adoption for Chromium, there is this somewhat verified claim that YouTube and Google services in general work better under Chromium web browsers, despite Firefox supporting the needs of those web services. Through the help of a third party extension for Firefox, you can lie to the server you’re connecting to and tell the server that you’re under a Chromium web browser, not under Firefox. How well that works is… at least in my experience questionable.
Under Firefox, do you run an adblocker by any chance? Adblockers are something Google confirmed to be interfering with YouTube’s functionality and general use.
Yeah, if you’re not running an ad blocker that could slow things down. Install UBlock Origin as well.
UBlock Origin is an adblocker and does slow down YouTube. Other websites, though? Depends. I have mostly noticed on YouTube.
@cactux cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
cat /sys/devices/system/cpu/cpu0/cpufreq/energy_performance_preference
amd-pstate-epp
performance powersave
balance_performance
@winnyace oooh riiiight, that makes sense! Instead of lieing, I managed to install Brave a moment ago. Until now it seemed that Brave was only in AUR and I didnt want to risk it. But I also found a download command directly on Brave website and downloaded it from there. I think YT really works slightly faster here.
And yes, you were right. I was using adblock on FF. Now I dont have it on Brave as I understabnd it is already a part of the browser.
This looks normal for amd-pstate-epp in active mode. This should give good battery life and also system responsiveness.
As I said yous issue may not have anything to do with this, But yet it may. Post also the output from the following to see which EPP profiles are available:
cat /sys/devices/system/cpu/cpu0/cpufreq/energy_performance_available_preferences
Uhh… You should be careful what commands you run on your system. The AUR package for Brave seems to be okay, as far as I can tell anyway…
You can install Brave through Flatpak too and that will be safe and officially supported too by Brave Software Inc.
I used this command. Was it ok?
curl -fsS https://dl.brave.com/install.sh | sh
default performance balance_performance balance_power power
This installs the AUR package, if I read the script correctly.
LOL oh damn 
That’s not an issue. They recommend the AUR package on that same page:
yes, but they give this command for AUR yay -Sy brave-bin
and I used a different one
The command is basically saying pull all the new packages and install the package named brave-bin.
That script, from what I can tell, installs the AUR package by using the PKGBUILD file from the AUR.