Have to agree with the previous responses.
Cats are pack animals, and a pecking order has to be established. In the wild, if it got too much for one cat, it would move away and set up elsewhere, but domestic cats can, and will, settle down together.
They may simply establish that one cat is head of the pack, and the rest will fall into line. The top cat will usually feed first, and have its favourite places, which will be left by the others. It may be that one or more will not give way, and there could be occasional spats and avoidance, but this is cats - it's their way, so don;t worry too much.
You should only be concerned if one cat is getting bullied and is coming off worse in fights, or is prevented from feeding - but this is pretty rare.
Cats are independent creatures - they find a way to rub along together - bit like us!