FTTP enabled router is something you won't see stamped on boxes, the generic description of a cable router is a more likely key phrase, or more technically, a router with an Ethernet WAN port and support for PPPoE
But be aware that running a PPPoE link at 80 Mbps while it fits in the 100 Mbps limit of the Ethernet port may tax the processor in the router, so what you have should work, but if things are slow consider a newer device with a Gigabit WAN port and more processing power. Looking at the actual router spec, it may or may not cope, certainly I'd expect the wireless side to struggle even if CPU is up to the job.
Better TP-Link at £74
the newer devices should cope with everything nicely and give you dual-band Wi-Fi to help tablets etc get the best speeds too.