So I have precompiled shader cache to disabled, and just put my saved GLCache I have made into the Folder, yet the compiling slows down progressively until it hits like 3 minutes, and ive done some timing tests and it seems basically random at that point, ranging from 1 minute to 3 minutes with no real reason. Uninstalling my GPU driver with DDU and reinstalling fixes it to a nice 15 second compile time, but slowly degrades over a few compiles, whats the cause of this? is this nvidias end? Thanks in advance!

i7 4790k 4.5ghz
GTX 970
16 GB Ram