Here's a list of the best brake fluid out there in order of wet boiling point, if you change the fluid daily then you could look at the dry column
If you are glazing pads then you need a higher temp pad, Pagid yellow(RS29) is a good choice but there are others in the RS, RSL or RST lines, I used to use the 29s but like PFC08 better, There are also other good high temp pads
cooling should be maxed, 964/99 A-arm scoops work well
reduced weigh reduces the load on the brakes
learning to drive better also reduced the load on the brakes
as far as hardware it can get very pricey
a small improvement comes from using '84-89 Carrera fronts on a '83 or earlier car, do not use the rears from those cars though
the best is going to be '78-89 930s all around, they fit any 7 or better Fuchs and are all that most 911s could ever need to use