I don’t really see the issue you’re talking about, what is freezing?
//EDIT: also it may not be the issue but your BIOS is really outdated (from 2019). If you update it be prepared with a Manjaro live USB to boot your installation as it may be possible the BIOS doesn’t auto detect the bootloader (and you can use the Manjaro USB to “Detect bootloaders” to boot on Manjaro, and from there you can reinstall Grub with command sudo grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=manjaro --recheck for an UEFI installation, followed by sudo update-grub and reboot).
That’s just different people taste on responsiveness. I’m also like you so I can see that this kind of freezing is annoying. I also assume that you’re also bothered with the slight lag when pressing the “Configuration” button and other similar things.
That kind of freezing is more to the kernel process load stuff and lots of things contribute to this (your CPU is still the good Ryzen generation, so the SSD initial state is probably the bottleneck), but it’s definitely not a graphics problem.