Packet loss during the day

Need some input as to why my BQM shows so many dropped packets during "office hours"? I have just had FTTP installed (Cityfibre/Giganet) and it is showing a very similar BQN trend to that seen by my VM FTTC.
Completely different router and nothing connected to FTTP except iphone.
Any advice or comments would be welcome
BQM here https://www.thinkbroadband.com/broadband/monitoring/...