As above, go for a 1.6.4 pack. As an all-rounder, Monster has everything you could want.
But as someone with an older PC, I used my first playthrough to play about with some mods, then cut out the ones I found annoying/redundant in my second world to cut down on system resources.
A slimmed down monster with a nice selection of all-round mods (no bias towards magic/industrial mods) eventually came to 130ish rather than 183 and runs a ton better than before.
ResonantRise, mentioned above, is painfully hard to play if you don't have an up-to-date machine.