Sometimes research w/ all 5 colored cubes can slow down, especially if the incoming belts are neighboring and some of the sorters have to traverse the closer belts carrying other-colored cubes. This layout uses 2-height splitters to allow all matrices to arrive as close to the labs as possible, and so all matrix inputs can use sorters of minimum length.
Belts + sorters are all mk2 to be more mid-game friendly (screenshot shows upgraded version)
Currently this blueprint can't be drag-chained... just focus on researching that vertical stacking height instead :)