I have a Ge-force GTX 660 TI with with 2 GB gram, a Intel Core i7-6700 CPU and 16.00 GB RAM. Before patch I had no trouble playing the game on max setting but after patch the first space combat I viewed was a 4 vs 4 ship combat that  became so slow with just a few frames per second so I almost tab out to kill the game. In the strategic map I had no issues.

After the patch the game is barely playable for me.

I noticed the fps drops, but my vcard is just tanking through it (GTX980)

But the top problem is the increasing memory leak lag 

- it is basically impossible to play by turn 30+ because everything slows down to a crawl

- there are noticeable hiccups in turn processing

- every window I open and close is lagging

- during AI turn whole thing freezes for a minute or two

- and when I try to exit the game to desktop it just freezes dead and crashes with "Stopped working" ntification.

All of that on Intel processor i7-4790K with 16Gb ram...

That would be an obscene amount of memory leaks I have seen to date.