For the mfr laser, i believe yellorium (and glowstone) is behind a yellow tinted lens.
Bees can be sped up in several ways, altering their traits to make them faster workers (Fast is fairly easy to extract from a cultivated bee, More exotic speices can have Faster and Fastest, although i don't rember them off top of my head). You can also improve their housing, apairies are all well and good for starting out, but alveries are faster, and if you don't mind powering them, the powered apairies from gendustry are one of hte best bee housing avaible.
^This, although I've seen in some videos (DW20 primarily) that you may have better yield using a green filter and finding uranium which can be ground into yellorium in a SAG mill if I remember correctly.