Mouse pointer lag or delay or shaky

Ok Paul, I'm adding some machine data.

OS Name Microsoft Windows 10 Pro
Version 10.0.19045 Build 19045
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name XXX
System Manufacturer Dell Inc.
System Model Latitude 5401
System Type x64-based PC
System SKU 0918
Processor Intel(R) Core(TM) i5-9400H CPU @ 2.50GHz, 2496 Mhz, 4 Core(s), 8 Logical Processor(s)
BIOS Version/Date Dell Inc. 1.25.0, 16.03.2023
SMBIOS Version 3.2
Embedded Controller Version 255.255
BIOS Mode UEFI
BaseBoard Manufacturer Dell Inc.
BaseBoard Product 0D2RTT
BaseBoard Version A00
Platform Role Mobile
Secure Boot State On
PCR7 Configuration Elevation Required to View
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume2
Locale United States
Hardware Abstraction Layer Version = "10.0.19041.1806"
Username XXX
Time Zone W. Europe Summer Time
Installed Physical Memory (RAM) 16,0 GB
Total Physical Memory 15,8 GB
Available Physical Memory 4,44 GB
Total Virtual Memory 21,3 GB
Available Virtual Memory 7,60 GB
Page File Space 5,50 GB
Page File C:\pagefile.sys
Kernel DMA Protection On
Virtualisation-based security Not enabled
Device Encryption Support Elevation Required to View
Hyper-V - VM Monitor Mode Extensions Yes
Hyper-V - Second Level Address Translation Extensions Yes
Hyper-V - Virtualisation Enabled in Firmware Yes
Hyper-V - Data Execution Protection Yes