I got in the beta yesterday and played my first two games.
I followed the development of the beta thanks to the forum for the last few days and I'd like to point out two issues I don't remember seeing here. Of course, these are not my only remarks regarding the game but I'm trying to stick to technical issues.
1. Regarding performance, the game performs pretty well on my not-so-new rig (A64 3800+, 2GB DDR400, Radeon X850XT PE). I noticed that the main frame-killer on my system -- except for very large battles watched from close-up -- is the Phase Jump animation when you have quite a few ships (~20) jumping simultaneously.
It's not only the preliminary animation but the transit animation as well. I think quite a few GPU cycles could be saved if this effect could be applied to a group of cycles or maybe the entire fleet instead of each individual ship.
I realize it's no big deal but, it's still a source of annoyance for me since it's more or less the only source of FPS drops.
2. I saw some very weird things happen after building Phase jump disruptors. For one, enemy IAs kept sending trade ships through that got hopelessly trapped in my system. At one point, I think there was like 20 or 30 ships piled up on the edge of my gravity well.
Unfortunately, the same happened with a combat fleet. I suppose this fleet intended to attack a distant system travelling through mine but the AI was not able to re-plan when the fleet got stuck in my system. Instead of attacking my planet, or at least the phase disruptor to break free, the ships just floated around aimlessly and the fleet just scattered very far out of the gravity well (mostly above and underneath).
Note that I had absolutely no defence in that system at that time. When I finally brought a combat fleet from another system and wanted to target these runaway ships, I noticed that my ships seemed to have a hard time computing a path to their target. In the end, there was some ships that I just could not destroy because they wandered to far from the gravity well, and I had a hard time to regroup my own fleet (it seemed like some units lost their move order periodically).
In short, I think the AI does not respond well to phase disruption interrupting a trip to another system.
I made some screenshots but I'm unable to post them at the moment. Will post them later.
Sorry if these issues have already been mentioned before.