Does resetting my iPhone 3GS makes it faster?

I'm having a old iPhone 3GS and it's not working well. I thought of resetting it from computer using iTunes. Will that be helpful? Please suggest some ideas for making my old phone fast. I will appreciate your suggestions.

Well it could boost the preformence because all the stuff being deleted and if you go to settings on you iphone and turn all the spotlights off it will torun much smoother as well

There's no way to really make it faster since ios 6 needs a lot of power from it

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