Well it is the time of being a cheapskate, so don’t rush it with upgrading your machine.
Though could you tell me the specs of your current setup? Would be good to know a bit about how performant my stuff is.
By the way in the settings you can turn off the biggest performance issues and turn on the CRT shader which lowers the resolution by a lot. That should get it running on pretty much anything. Looks very much diffrent though.
But don’t rush yourself. Especially as I might soon finish an update with some extras.