Accelerated conns/Total conns : 16198/17039 (95%)
Accelerated pkts/Total pkts : 6110194/9564033 (63%)
F2Fed pkts/Total pkts : 3452735/9564033 (36%)
PXL pkts/Total pkts : 1104/9564033 (0%)
QXL pkts/Total pkts : 0/9564033 (0%)
This is due to a high amount of stateless traffic in the network that cannot be accelerated.
For example traffic of the following protocols can cause such behaviour:
HSRP, CDP, LLDP