OK first off I think the force Lance is possibly a bit overpowered. For a turreted it or medium weapon it has the highest damage overall and is long range mod able. But it is also very easy to get.
This brings me to my second point. I think there needs to be an across-the-board Nerf of the AIS research rate. Given how easy it is to colonize a planet the AI is quite capable of doing many tiers of research during a single production cycle. I'm finding force lance hell cannons variants quite common. It would be nice to idle a bit in the tech tree.
I find this especially noticeable when it comes to marauders. Their ability to Leap up the tech tree is near insanity. They alone should be deserving of a scientific research nerf.