Can someone please help me with this?

I've just connected up a new wired network and the wireless speed I'm getting off the EAP115 access points is lower than I expected at only 66Mbps.

I have virgin cable incoming and a virgin Superhub2 as the router.  I'm getting speeds of over 200Mbps directly from the router wifi in 5g and 2g modes.

From the router I've used a short Cat6 cable to connect to the SG108PE switch.

From the switch I have two EAP115 wireless access points connected by Cat6 cable to the PoE ports 1 and 2.  I believed they should be providing 300Mbps.  The cables are just 17 metres in length and test ok.

Would really be grateful if someone can shed some light on what might be wrong.

Thanks