Perhaps this helps others to, here are my full observations:

- it seems to be best to get a laptop/pc with 8 RAM or more for using game development software like gs3d, Unity and whatever. I have 6 and it is a bit on the low side.
- my quess would be getting a SSD for writing the page file instead of a HD or SSHD would help alot.
- dont disable your page file in the newer Window's (8/10), it seems that it can result in crashes/freezes on startup when initializing hardware stuff (in my case Asus).
- Instead set your pagefile to something low like 400 mb for both max and init. This doesn't entirely solve it though, you can still get long load times after a while but it is an improvement.

Anyway the cause of all this seems to be that the page file is used to often by Windows which results in that Windows needs to free it which takes along time cause it writes to the harddisk or something like that (which is slower than normal RAM). So using a SSD seems to be the best solution.