If you experience significant performance drop with Paradox Sign In and Steam running, can you compare your Net Traffic while idle on Desktop with one while playing Stellaris (Sign In and Steam "on")?
I recently remembered hearing (several years ago) about Stellaris and EUIV "spamming" net channel if they cannot establish proper connection with PDox/Steam services (people theorized issues with Account Synchronization and other data gathering), filling it to the point there it affected overall machine performance.
Can be this *shrugs*
I DO experience significance performance drop with Paradox Sign In and Steam running, and THANKS to this thread I discovered that it's caused by this issue.
Last night I logged out of PDX account from the Stellaris launcher, and my loading times of the game, the simple boot, passed from nearly 2 minutes to 20 rough seconds, on my i7 2600k (4.5Ghz OC) and also in game performance improved.
I'll try to make a comparison of the net traffic, seeing also if the process generates more traffic with and without the log-in to provide more data here so they can analyze.
In the meantime, thansk to you all posters and OP!