Superchargers - Turbochargers any kind of forced induction systems will seriously take a toll on your Accord. It's not worth spending your hard earned money on a car which is made for class, elegance, luxury and comfort lol.
If you want to go full hard-core, brother sell the Swift buy yourself a Euro R. If I was in your position, considering performance upgrades - I would gladly swap out a Swift for a Euro R. A members car is for sale and I'm really tempted to throw in the ball but I know it'll be a financial mistake because I'm looking for a bike and not a third car.