Видео LAG на Ubuntu 20. 04 / Lubuntu 20.04 AMD Athlon 64 3200+ @ 2 ГГц

I'm a noob to Ubuntu. and would appreciate some help

I have this old machine that had XP, it was useless, and figured I'd install a light weight OS Lubuntu was the Idea. however I continued to install the only familiar Distro Ubuntu 20.04 with Lubuntu over it, I'm not really sure what I did, and with minor problems it is up and running better than expected, but the video on youtube and on vlc tends to be choppy and lag, before and after the Lubuntu graphical install--- the sound works great so does everything else. Моя идея состояла в том, чтобы превратить этого старичка в медиа-машину для потокового видео и т. Д.

Я готов сделать любую вещь, которая обеспечит хороший поток. вот некоторые спецификации, надеюсь, вы понимаете больше, чем я, что я должен делать

    yyyyy- -yyyyyy+      OS: Ubuntu 20.04 focal
           ://+//////-yyyyyyo      Kernel: x86_64 Linux 5.4.0-40-generic
       .++ .:/++++++/-.+sss/`      Uptime: 2h 36m
     .:++o:  /++++++++/:--:/-      Packages: 1921
    o:+o+:++.`..```.-/oo+++++/     Shell: bash 5.0.16
   .:+o:+o/.          `+sssoo+/    Resolution: 1440x900
  .++/+:+oo+o:`             /sssooo.   DE: LXQt 0.14.1
 /+++//+:`oo+o               /::--:.   WM: OpenBox
 \+/+o+++`o++o               ++////.   WM Theme: frost
  .++.o+++oo+:`             /dddhhh.   GTK Theme: Arc-Dark [GTK2],  Arc-Dark [GTK3]
       .+.o+oo:.          `oddhhhh+    Icon Theme: Papirus-Dark
        \+.++o+o``-````.:ohdhhhhh+     Font: Ubuntu 11
         `:o+++ `ohhhhhhhhyo++os:      Disk: 12G / 148G (9%)
           .o:`.syhhhhhhh/.oo++o`      CPU: AMD Athlon 64 3200+ @ 2GHz
               /osyyyyyyo++ooo+++/     GPU: AMD/ATI RV370 [Radeon X300/X550/X1050 Series]
                   ````` +oo+++o\:     RAM: 1060MiB / 1483MiB

sudo lshw | grep product | head -n1 && sudo lshw | grep display && sudo lspci -v -s $(lspci | grep ' VGA ' | cut -d" " -f 1)
    product: System Product Name
           *-display:0
           *-display:1 UNCLAIMED
02:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV370 [Radeon X300/X550/X1050 Series] (prog-if 00 [VGA controller])
        Subsystem: GeCube Technologies, Inc. RV370 [Radeon X300/X550/X1050 Series]
        Flags: bus master, fast devsel, latency 0, IRQ 25, NUMA node 0
        Memory at d8000000 (32-bit, prefetchable) [size=128M]
        I/O ports at e000 [size=256]
        Memory at fbdf0000 (32-bit, non-prefetchable) [size=64K]
        Expansion ROM at 000c0000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 2
        Capabilities: [58] Express Endpoint, MSI 00
        Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit+
        Capabilities: [100] Advanced Error Reporting
        Kernel driver in use: radeon
        Kernel modules: radeonfb, radeon