Ubuntu 24.04/24.10 slow at boot up and slow opening programs

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Ubuntu Version:
Ubuntu 24.04/24.10

Desktop Environment (if applicable):
GNOME

Problem Description:
After switching from windos 10 to ubuntu 24.04 and later 24.10 i noticed very slow boot up when starting my laptop much slower then on w10 and this goes for both 24.04 and 24.10.

opening programs take a very long time and this differs from program to program forexample ff takes nearly 10 seconds to start the terminal takes like 5 seconds etc

my nightlight button i turn on but it doesnt activate until after using the computer for a couple hours.

i note all of this here because i thought maybe there is a connection?

Relevant System Information:

@n-HP-EliteBook-6930p
              .',:clooo:  .:looooo:.           ----------------------
           .;looooooooc  .oooooooooo'          OS: Ubuntu oracular 24.10 x86_64
        .;looooool:,''.  :ooooooooooc          Host: HP EliteBook 6930p (F.20)
       ;looool;.         'oooooooooo,          Kernel: Linux 6.11.0-18-generic
      ;clool'             .cooooooc.  ,,       Uptime: 3 hours, 4 mins
         ...                ......  .:oo,      Packages: 1926 (dpkg), 21 (snap)
  .;clol:,.                        .loooo'     Shell: bash 5.2.32
 :ooooooooo,                        'ooool     Display (SEC4E42): 1280x800 @ 60Hzooooooooooo.                        loooo.    
'ooooooooool                         coooo.    DE: GNOME 47.0
 ,loooooooc.                        .loooo.    WM: Mutter (Wayland)
   .,;;;'.                          ;ooooc     WM Theme: Yaru-dark
       ...                         ,ooool.     Theme: Yaru-dark [GTK2/3/4]
    .cooooc.              ..',,'.  .cooo.      Icons: Yaru-dark [GTK2/3/4]
      ;ooooo:.           ;oooooooc.  :l.       Font: Ubuntu Sans (11pt) [GTK2/3/4]     .coooooc,..      coooooooooo.    
         .:ooooooolc:. .ooooooooooo'           Cursor: Yaru (24px)
           .':loooooo;  ,oooooooooc            Terminal: GNOME Terminal 3.54.0
               ..';::c'  .;loooo:'             Terminal Font: Ubuntu Sans Mono (13pt)
                                               CPU: Intel(R) Core(TM)2 Duo     P8700 (2) @ 2.53 GHz
                                               GPU: Intel Mobile 4 Series Chipset Integrated Graphics Controller [Integrated]
                                               Memory: 1.86 GiB / 3.35 GiB (56%)
                                               Swap: 165.50 MiB / 3.66 GiB (4%)
                                               Disk (/): 52.07 GiB / 109.47 GiB (48%) - ext4

What I’ve Tried:
tried different Ubuntu flavours

Thank you in advance for your help.

Kind regards

Nemo

2

There is a known issue with Core2 CPUs, the next UWN includes the following

Intel Core 2 CPUs Have Been Affected By An Annoying Linux Kernel Bug For 5+ Years

Michael Larabel reports of a fix for Intel Core 2 processors’ system stalls and slow boot in the 6.14 kernel. The reason for the long standing affect is disclosed with the fix expected to be back-ported to stable series soon.

https://www.phoronix.com/news/Intel-Core-2-Stalls-Boot-Fix

See Ubuntu Weekly Newsletter Issue 881

Ubuntu 24.04 LTS currently uses the 6.8 kernel (if using GA), or 6.11 (if using HWE), with Ubuntu 24.10 using 6.11; neither of which have the fixes yet mentioned in that article (as not security related; I’d not expect it until 24.04 upgrades to the 6.14 HWE kernel if you’re using HWE; 24.10 users will get it when they release-upgrade to 25.04 where the 6.14 HWE kernel will come from)

Ubuntu flavors all use the standard Ubuntu base at boot; the differences beyond that are mostly superficial or set by your install media (ie. flavor media may install with either GA or HWE kernel; controlled by ISO used to install), thus I’d expect them to be essentially identical (some flavor ISOs allow a snapd free install which may make boot & login a tad faster, but its still a minor difference in my opinion)

If what you’re talking is something else though (either related to a config or other package option) you were vague, I felt, with details so I’ve responded based on a Core2 detail in your paste which is a known value.

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