. . . drilled rotors will not help the performance of your brakes. slotted only - yes.
Drilled rotors while they might look cool do indeed remove thermal mass from the rotor thus reducing it's overall cooling ability - or specifically it's heat sinking ability. which is the second goal. primary goal being a friction surface. Yes some sporty cars have drilled rotors - they are for show because back in the 70's and 80's some sporty and race cars had drilled rotors too.
if you want to increase the performance - slotted only and a good metalic/ceramic pad, and fresh brake fluid is your friends - and some SS brake lines in place of the rubber ones. you want to go beyond that - mount bigger rotors, and if you can bigger pads/calipers.
best thing you could do - get better tires.
why slotted only - they will help increase the friction of your pads by keeping them clean and free of glazing. IN the olden days they also allowed for trapped gasses between the pads and rotors under heat to escape. with modern ceramic or metallic/ceramic pads this is not a real issue. Also pad makers started grooving their pads to help with this also. Glazing - when you lay hard on your brakes for turn 5 at road atlanta, you can heat the surface up enough it will coke over and create a slicker surface when they cool again - if your rotors were slotted that gets scraped by the slots as they go past - leaving a nice clean pad face for the next hard brake application.
if however you aren't going to drive this hard - it's mostly wasted effort again.
for looks - if just for looks - knock yourself out. . . .