Direct answer: first rule out competition and changes in appetite, then make the meal calmer and easier to pace. Repeated vomiting, weight change or a sudden new pattern needs veterinary advice.
Separate the diners
Feed cats apart so one cannot hover over another. Use measured portions and confirm which cat actually finishes each meal.
Change presentation cautiously
Several small meals may be easier to pace than one large serving. A suitable slow-feeding or puzzle device can help some cats, but introduce it gradually and stop if it causes frustration.
Record what happens
Note meal duration, vomiting, stool changes, thirst and body weight. This gives the vet useful context if the behaviour persists.
A practical furniture note: Kitty Buffet can support this routine where its current specifications suit your cat and room. Product furniture cannot diagnose or treat a health or behaviour problem.
