Windows 11 slows down when switching apps from different monitors

Hello,

i have a dual monitor setup and I've been having an issue for a few months where Windows 11 used to randomly slow down and i didn't know why. While I haven't found the solution, I found out the actions that cause this, and it's that when I have for example a browser on my Monitor1 and another app on my Monitor2, if I use the app on my Monitor2 and then switch to my browser on Monitor1 to download something for example, for a period that goes between 15 seconds to 2 minutes every action is extremely slow. This happens both if I go from Monitor1 to Monitor2 and viceversa.

I was able to understand that this was what caused the issue because over time I attempted a lot of fixes but they never solved it. Here's everything I've already attempted to do:

• Updated graphics driver: no difference
• Buyed new components: i've changed RAM, MOBO, CPU, switched a secondary (not even the main) HDD to an SSD - initially helped a bit, but then no difference
• Tried using multiple virus removal services: nothing was found, so no difference
• Changed monitor: no difference, this happens on every dual monitor even when they have same resolution and refresh rate
• Changed cables: tried different hdmi and displayports, no difference
• Changed battery saving settings: they were already at max, no difference when I changed it
• Reinstalling windows 11: no difference

Using a single monitor does have this issue but in a way more limited way and it only affects intense apps which I may expect some loading time in the first 3 seconds (very far from the previous 2 minutes of slowing time).

After the 15 seconds to 2 minutes slowing time, everything works normally, mouse pointer doesn't lag and I'm able to work at high speed.

When I look at the Task Manager I don't see any issue, gpu and cpu were low when they had to be low and high when they had to be (like using a rendering software).

I've already spent a lot of money to change the components listed above and I don't want to spend more to buy a completely new PC. Can you help me solving this issue? I can attach any log or proof you need.

Here's my component list:

• CPU: Ryzen 5 5600
• MOBO: Gigabyte B360M DS3H
• GPU: Nvidia 3060 TI
• RAM: 32GB Ram 3600mhz (using XMP)
• Memory: 2x 1TB SSD (1 m.2, 1 sata) + 500gb SATA SSD
• Monitors: Acer QG271 27'' and Philips ENVIA 27''

Thanks in advance