What are you on about exactly? The Viper Mk3 is utilized exactly how it should be; a low-end stepping stone combat ship, on the route to bigger and better things. Like it or not, the Vulture is the pinnacle of small ships and it isn't likely that a ship that costs ~1mil maxed out would perform anywhere close to a ship that costs ~20mil maxed out. If you want to use a low-end ship, okay, but get used to having poor firepower, armor, and shields compared to more expensive ships.
Also, bigger IS better. It's why Desktop PCs have much more potential processing power compared to tablets, laptops, and consoles. They take up more physical space (and in the case of tablets/laptops don't have to rely on batteries) thus they can more effectively manage heat and use larger components with more transistors crammed in. It's why trains are better at moving cargo than trucks. And it's why the Anaconda can stomp Vipers all day and night.
That's just sad. Let's all grind to Anacondas, the Galaxy will be much more interesting then!?