Hello, I have some problems using KWin. When I scroll pages in Firefox I have some little lags/freezes that is very uncomfortable. These problems are not only in Firefox, I also see these glitches in other browsers.

When I use Compiz, I don’t have such problems, but I can’t install Compiz properly on KDE neon, I miss window frames. I found that it can be fixed with emerald, but I can’t find this package, and also i install Compiz from default repositories, not Compiz-kde(i don’t have it).

I need a solution for this. Is there a way to fix this bug in KWin, if not, can you please help me to install Compiz properly.

Thank you.

Maybe go to "System Settings" > "Display and Monitor" > "Compositor", try changing the "Rendering Backend"
Also try changing the screen resolution, lower res might make things more responsive.

Thank you for your answer.
But this setting up doesn't help. If i choose "xRender" i get worse tearing and there are no deference between different OpenGL versions.
There is no need to make lower res, while i use compiz i get a good result with the same res.

Some info about your system?
(inxi -F)

System: Host: winte-TM1703 Kernel: 4.15.0-46-generic x86_64 bits: 64 Desktop: KDE Plasma 5.15.3
Distro: KDE neon User Edition 5.15
Machine: Device: laptop System: Timi product: TM1703 v: XMAKB3M0P100B serial: N/A
Mobo: Timi model: TM1703 v: XMAKB3M0P100B serial: N/A UEFI: Insyde v: XMAKB3M0P100B date: 03/22/2018
Battery BAT0: charge: 11.9 Wh 29.6% condition: 40.3/40.1 Wh (100%)
CPU: Quad core Intel Core i5-8250U (-MT-MCP-) cache: 6144 KB
clock speeds: max: 3400 MHz 1: 899 MHz 2: 900 MHz 3: 900 MHz 4: 900 MHz 5: 900 MHz 6: 900 MHz
7: 900 MHz 8: 900 MHz
Graphics: Card-1: Intel UHD Graphics 620
Card-2: NVIDIA GP108M [GeForce MX150]
Display Server: x11 (X.Org 1.19.6 ) drivers: modesetting,nouveau (unloaded: fbdev,vesa)
Resolution: 1920x1080@59.98hz
OpenGL: renderer: Mesa DRI Intel UHD Graphics 620 (Kabylake GT2) version: 4.5 Mesa 18.2.2
Audio: Card Intel Sunrise Point-LP HD Audio driver: snd_hda_intel Sound: ALSA v: k4.15.0-46-generic
Network: Card: Intel Wireless 8265 / 8275 driver: iwlwifi
IF: wlp2s0 state: up mac: 7c:2a:31:16:7e:66
Drives: HDD Total Size: 256.1GB (7.0% used)
ID-1: /dev/nvme0n1 model: SAMSUNG_MZVLB256HAHQ size: 256.1GB
Partition: ID-1: / size: 226G used: 9.4G (5%) fs: ext4 dev: /dev/nvme0n1p1
ID-2: swap-1 size: 8.19GB used: 0.00GB (0%) fs: swap dev: /dev/nvme0n1p2
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 30.0C mobo: 30.0C gpu: 35.0
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 277 Uptime: 1:02 Memory: 942.2/7885.9MB Client: Shell (bash) inxi: 2.3.56

The problem is solved. Here’s the solution:

https://www.google.ru/amp/s/amp.reddit. ... 1920x1080/