I'll preface this by saying I have a somewhat large library at 21,565 games that is all on an entirely self-contained portable installation on a 10TB external HDD. Once I finally got everything setup the way I liked it, this setup ran beautifully, both LaunchBox and BigBox, with silky smooth animations and snappy menus. After a hiatus of a few months, I've come back to find that this is no longer the case. While LaunchBox and BigBox load quickly, all of the animations are EXTREMELY sluggish and choppy. Scrolling through a list of games for a system is no longer smooth and responsive. Worse yet is that BigBox is even slower. I am using the default theme and all of the system/platform stylized background videos play very poorly, as in single frames per second. Scrolling through the BigBox system and games menus is very slow and chunky with long load periods. Interestingly, once inside the system category and in the game lists, all of the game preview videos play smoothly, however, it is the animations here (such as the text coming into the screen, ratings and whatnot) that are very slow and choppy.
I've gone in and checked random videos within Windows and all play just fine. All of my ROMs play fine and RetroArch runs without any issue. I've defragmented, ran "sfc /scannow", installed a new copy of LaunchBox over my existing copy, Installed a copy elsewhere on the drive along with copying the data folder from my old install, and am currently running the extensive version of the media cleanup tool.
I can't stress enough how smoothly this portable setup used to run on my PC which is why it is so shocking how poorly it is currently running.
The PC is an i7 7700K, 32GB 3200Mhz RAM, 2080Ti with Windows installed on an NVMe drive.
Any help is greatly appreciated because I would love to get to the bottom of this and get back to enjoying the heck out of my LB/BB retro setup!