Stop building mines all over the place and do some irrigation instead (on wheat/cattle tiles too). This will allow your cities to grow quickly, and a larger city produces proportionally more science/gold than a smaller one. That's why automated workers always seem to irrigate too much if you've wondered. In despotism it's not useful to irrigate regular grassland, but as soon as you switch to a better govt immediately irrigate some of it to grow fast to size 12, then turn it back to mines till you get hospitals, at which point you irrigate again. It halps a lot to be an industrious civ.
And yes, you should start building the Pyramids very early on, in your capital, after you built a couple settlers, a few units, and maybe a temple. Then go out and explore, most importantly meet new civs. Trade science, keep in mind that innitially every civ starts with a couple different techs so it's very important to trade yours for theirs. Then aim all your research for Literature, make sure you get it before someone else builds the pyramids, and switch your pyramid to the Gr.Library. After that, it's important to meet all other civs as fast as possible, you won't get their techs if you don't have contact with them. Build a few galleys and send them accross the ocean to the other continent, hopefully at least one will make it and establish contact there. Then trade maps, but don't trade contacts until somone discovers navigation, you're better off keeping them separated and brokering techs from one side to the other.
From GrLibr to Education keep Sci rate at 0% and make lots of moneyn needed later on for wars/improvements/etc. When education comes switch sci to 100% even if you lose money (don't lose all of it tho) and aim straight for Military tradition.
Then go to
This seems to work just fine on Emperor.
