Extreme slow internet speed pfsense over proxmox

For a qemu proxmox guest PFSense acts weriedly with the network speed- it gets extremely slow. So her goes the little tweaks that worked for me-

First, I chose Intel E1000 Interfaces instead VirtIO.

Second, in the PFSense webconsole-

In pfSense GUI, System > Advanced > Networking > Tick on-

• Disable hardware checksum offload
• Disable hardware TCP segmentation offload
• Disable hardware large receive offload