Yes I used Sandisk Ultra Flair 32GB USB3 derive
The fresh install is very slow, also the USB live session is very slow. I don’t know why
My PC is not very old (I think)
My PC spec:
Gigabyte GA-H77N WiFi
CPU Intel i5 3570K
GPU Nvidia GTX 650
16GB Kingston Hyper X DDR3 1600Mhz Ram
Samsung 500GB Evo 860 SSD
Onboard video or discrete graphics adapter? And have you tried… 
- using OpenGL 2.0 instead of 3.1?
- using XRender instead of OpenGL?
- disabling the compositor altogether?
System Settings → Hardware → Display and Monitor → Compositor
Thank you for your reply
I have tried to change it to
XRender instead of OpenGL
I have tried OpenGL 2.0 & 3.1
No difference, everything is slow boot, logout, shutdown, opening applications
when I click on something nothing happens and 30-45 seconds later it opens
The strange thing is it happens from live session as well
What about disabling the compositor? It’s in the same settings page.
Enable compositor on startup (not checked)
Restarted my PC, no difference
Have you looked in htop or ksysguard for any stuck processes?
Memory usage 1.8GB (16GB installed)
CPU usage low under 8%
Well, I’m out of ideas on account of what to check. 
But if XFCE works for you, then I guess it’s best if you stick to that. 
htop check is the very least that can be shown for proper diagnosys. Otherwise, it would be just another crystal ball analysis.
1 Like
The strange thing is that Manjaro KDE, Fedora KDE, Solus KDE seems to be very slow (freezing at times) unusable for me. (live session or fresh install)
I have tried KDE Neon & Kubuntu & these distros works absolutely fine. So what’s different between these distros that one works fine the other is very slow ???
What if it’s an NVIDIA driver issue? I had issues in the past where my GPU would use the nouveau drivers instead of the proprietary ones and KDE would chug. It could also be that the proprietary drivers are mis-configured.
That is possible. Personally I don’t have any experience with nouveau, but from what I’ve read, it appears quite crippled in comparison to the GPL’d AMD and Intel drivers.
Can you tell us what graphics driver you are using? Is it NVIDIA or is noveau?
As you 've been told already here,
you should post the output of this command
inxi --admin --verbosity=7 --filter --no-host --width
So go ahead and post the contents using the </> button.
1 Like
Hi
I am using NVIDIA drivers, I have tried both proprietary and open source drivers but no difference.
I have changed my bios to default and now the live session is working fine. The fresh install is still very slow & non responsive at times.
Wow… This did the magic for me. My lenovo laptop ideapad 330 was sluggish like a snail with the new install of KDE version of Manjaro 21.0.7. I selected XRender… Now, having a great experience… Thanks a lot… 
Hi,
It seems to be the KDE version is getting a little bit slower in the past few cycles.
Currently the KDE desktop response time feels a little bit slower than the other DE enviroments.
Please do not judge me but on my notebook I ditched the Manjaro OS(Core i5 11th gen | NVME Samsung 980 M.2 500 GB SSD | 16GB ram) to Fedora.
On my i5 desktop pc I am still using manjaro.
Intel 6th Gen + 16GB ram + dual boot (win10)
In the desktop pc the manjaro feels more responsive but on the notebook the system was not so responsive according to my experience.
I can not tell the reason but I had an odd feeling when I was using it.
I do not think so the hardware should be the only reason in this situation.