My cat is nearly 9 years old and he's being eating each of its meals so fast since I can't remember! I'm not sure for his first year with me, but for at least 8 years, each time I fed him he'd rush into his meal and eat it like in a second.
I didn't thought it'd be too much of an issue but recently I started giving him little pieces of raw meat, mostly for special treat and less than 5% of his food and I've notice he'd eat it without savoring. He makes me think he's scared his food will disappear somehow but that's years it doesn't! I don't know if he's like humans and that's good for his stomach to savor and good for his brain too, that putty will make him understand he satisfied his hunger.
Should I try make him savor his food or is it pointless? I have no idea how I could because he doesn't understand my words!
Finally, I'm nearly sure he's neither underfed or overfed because every time I bring him to the vet and he weigh him, nothing is wrong and his silhouette is alright too. You can see that in the following pictures I took.