A kitchen, like every other room in the house, serves only one purpose: to provide a pleasant environment in which to prepare meals and snacks. If it isn't doing that, something is wrong or lacking in your kitchen.
I will not advise you to purchase or install this or that to improve your kitchen. However, here are some suggestions for you:
Make sure your kitchen has the equipment and appliances you (or your family) need for your lifestyle, diet, and culinary preferences and habits. If you like to bake, this implies you'll need an oven in your kitchen. Also, make sure you have sauces and supplies that are acceptable for your diet and cooking tastes in your pantry. If you're a vegetarian, you'll understand what I'm talking about.
Most essential, your kitchen should be kept clean (this includes the floors). Because the kitchen is where you make your meals, keeping it clean and organised is the first step toward cooking clean and healthy meals. Because you won't be able to make quality meals efficiently if your kitchen isn't clean and neat, even if you have the latest trendy appliances and pricey marble or granite bench tops.
To make your kitchen "better," you don't need to buy an automatic potato peeler or a telekinetic fridge (I don't believe they exist, but I hope you get what I mean). As long as it accomplishes what it's supposed to do and you're happy, comfortable, at ease, and inspired when preparing your next meal, that's all that matters.