Slow throughput with HAproxy and SSL offload

[neil31415]

I setup HA proxy for SSL offload and it is working great but I have noticed that throughput seems slower then it should be for my internet connection. So I setup a speed test server and did a test with SSL offload enabled and without.

With SSL offload enabled I'm getting 22/23Mbs up/down
Without SSL offload I'm getting 100/200Mbs up/down

Anybody Experience this issue before? Any ideas on what could cause it or how to troubleshoot it?

My install is a VM on Proxmox.
2.7.2-RELEASE
haproxy-devel net 0.63_2
Made sure all these settings were disabled.

Hardware Checksum Offloading
Hardware TCP Segmentation Offloading
Hardware Large Receive Offloading