Translations:Virt-manager/34/en
9. Change the type of SATA Disk 1 (the disk image of the creating virtual machine) to virtio for better performance. Change discard mode to unmap, and then apply the change. You should notice the device name would change from SATA Disk 1 to VirtIO Disk 1.
10. Set the NIC type to virtio too for better network performance.
11. Add TPM chip, select TIS model through Emulated device backend.