Question Strange system behavior when opening the start/settings menu

[GioJL]

Good afternoon

I encountered a very strange problem related to the Windows 11 start menu.
When I open the menu, it starts to open not as smoothly as it should. The animation seems to start to slow down, as if the refresh rate were changing, say, from 144 to 60.
Although I have not seen such a problem with other users whose monitor refresh rate is equal to or higher than 144 Hz, everything is perfectly smooth with those I looked at.

The same applies to the Windows settings menu when scrolling the list of settings, and it can constantly change from smooth to sharp every other time.
The most interesting thing happens when I open some monitoring program, for example,
I decided to try AMD Rysen Master, and after I opened it, the problem disappeared. Everything was fine until I closed AMD Master, and everything returned to its place.

Recently, I have encountered a drop in fps in some online games, not knowing what the problem might be. These same drops can last about 5 seconds, and after that the frame rate returns to normal.

My system specs are :
CPU : Ryzen 5 7500F
CPU Cooler : Aerocool AK500S Digital
Motherboard : MSI B650 Gaming Plus - WIFI
RAM - 32 Gb Kingbank 6400 Mhz
GPU : Gigabyte RX 6700 XT 12Gb
PSU : Deepcool 750W
SSD1 : Kingbank 512Gb
SSD2: Kingston Fury Renegade 1Tb
Monitor : Samsung 1920x1080 240Hz (DisplayPort 1.2)
Software : Windows 11 Pro x64

 

[Ralston18]

Use Windows' built in tools to observe system performance: Task Manager, Resource Monitor, and Process Explorer (Microsoft, free).

https://learn.microsoft.com/en-us/sysinternals/downloads/process-explorer

Use all three tools but only one tool at a time.

Objective being to discover what the system is doing or trying to when the fps drops occur.

Determine what system resources are being used, to what extent, and what is using any given resource when the problem occurs.

You will need to keep the tool window open and viewable in order to watch what is (or is not) happening.

The graphical presentations may reveal some change or pattern.

Simply boot up, and open the tool window. Watch for a bit while doing nothing. Allow the system to steady up and become stable. Keep the tool window open.

Then open start menus and/or take other actions that you know will slow the animation.

May take a bit of trial and error to work out a method to be able to watch what is happening.

Take your time, no need to rush, or immediately start changing things.