Why is my MPG so low ??

I have a 2.5 litre petrol hybrid Rav4 UK model and my MPG seems low?

My car has had all its service from Toyota they haven't picked up on any issues.

Mileage is 115,000.

https://preview.redd.it/4fzjsh1qibge1.jpg?width=2250&format=pjpg&auto=webp&s=555d7a7e6cf12d80b89bc6168b489bf6ef038947

https://preview.redd.it/i3oco3rpibge1.jpg?width=1080&format=pjpg&auto=webp&s=13c5b29843b96dbaf33b70aa513c3f67384448f6

What could be the issue?