Condor Tune?

I’m just awaiting the arrival of my new .22 Condor. I would like to upgrade to a .25 heavier hammer, o-ring mod, slap mod etc… I keep hearing the term “tune” thrown around. What is a Tune exactly? I’m from Canada so sending my Condor down to the States is not an option. If I were to buy all the mods from Tony and install them myself would my gun not work well with out it being “tuned” I build and race cars as a hobby and source of income. So the word Tune might have a different meaning for me then in this context. I just don’t want a box full of parts that when installed don’t perform well right out of the box. Thanks Ron