This was a really great game although I must say after nearly 72 hours of play the lack of new features after the 2nd elf assimilation has caused me to not wish and pursue a 3rd assimilation. ECha I sense you hit a wall after coding the 2nd assimilation and just wanted to release which is quite understandable.
Less detail on the little workers please it's making it lag. You've got hundreds of little workers skipping and hopping around giving thumbs ups to each other and smoking cigars it's making it lag.
To fit 5 extractors in H, I simply turned on mouse keys (default hotkey is alt, left ctrl, numlock) and zoomed in on the page a bit using ctrl + and precisely placed them in the four corners and in the centre.
You always have a chance to drop a gem if you are pushing on and playing at your max area