Once it completes, reboot and tap the tab key like a tap dancer that fell into a volcano when you see the see the manufacturers splash screen to pull up Advanced Options for Zorin. Enter that and boot from the new Kernel to test its performance. If it works, you can set it to default to that kernel so you do not need to choose it at boot OR remove the 5.11 kernel.
To set the new kernel to default
Boot into the kernel you wish to be Saved.:
sudo nano /etc/default/grub
Change GRUB_DEFAULT=0 to GRUB_DEFAULT=saved
Hit enter to drop down a line.
Add GRUB_SAVEDEFAULT=true
ctrl+x to exit, then the y key to say yes to save, then the enter key to save as current configuration.
Run
sudo update-grub
to make the changes take effect.