Hi Callegro and Selkan.
I'm also having issues with Orbx Vector. I recently purchased both FS Global Mesh and FTX Vector. It is the first time I've had real issues with FTX products. FS Global hasn't proven to be problematic except for poor installation instructions and poor config-tool instructions. I'm beginning to wish I hadn't dropped the cash on either. That said, FTX Vector causes a substantial framerate hit, occasional, temporary freezes, and weird graphical anomalies. Unchecking the Vector entries within the FSX scenery interface results in expected framerates. I have recently built a new rig and I use my older desktop (this PC) as a test bed for installing products. I have yet to install the products on my new rig, as I am waiting for an answer to these issues, that is, I'm hoping it is an installation sequence issue of sorts. I will likely go ahead and try an install of each product on my new rig and I will post the results.
Selkan, I am following your post on Orbx forum.