Did a full reinstall already. I've got it barely playable now, managed to avoid the framerate drops - but I'm gonna wait a bit until I get a new PC. This laptop used to run this game great, but whatever stability improvements have come - they've clearly also banged the requirements up.
We have increased the minimum requirements several times over the course of development and that is likely going to happen again, as we want to make use of new technology and have changed some substantial things that require more power. Laptops have never been a good idea to run Eco on, so I can imagine it's not running well there - but as far as performance goes our last Performance Update series has mostly fixed issues aside of special cases we're still working on and will be in Update 10.