Can I upgrade hybrid car performance w/ losing hybrid properties?

I have a 2005 Honda civic hybrid. Can I customize parts components electronics everything. And still have hybrid mileage?

I'm thinking maybe if the weight the same or less then factory install. It shouldn't be a problem?

I'm a car rookie. Don't know much. But I'm learning.

There isn't much out there for that car mechanically. If you want to try something, it is your car…

Messing with the engine will probably throw off the computer that tries to maximize economy. Could be a disaster.

If you want a faster car, sell your hybrid and buy a faster car. Everything on that car has been optimized for efficiency, if you try replacing stuff, new chip program, stuff like that, all of what Honda engineers designed goes right out the window.