I wasn't playing in Hive's BW in a long period of time, but I've returned to it just with the release of the Java 2 update, and, to my unfortunate bumped into a big problem. Essentially, when I start a new match my FPS is around 300 frames, but after a while (usually 10 minutes, if the match is long enough) the FPS is dropping to 120 (when it actually feels like 40) and then continues to drop. The lowest I got, was when I got into a fight, it dropped suddenly from 30 to 3 fps. That match was lasting for about 20 minutes or so. I haven't ever experienced the same on other servers.