Hi! Playing KSP 1.7.0 but switching back to PRE 1.9 because 1.10 is just unplayable for me for some reason. First thing I noticed right away is extreme delays when loading a vehicle on the launch pad, and then it gets even worse when I launch the rocket (release the clamps). The game just freezes and stutters for like 10 seconds but the rocket keeps firing (it looks like a TWR of 1.01) and then when the game unfreezes I'm still on the ground but I've lost the fuel of that burn time. During the ascent, the rocket becomes more and more unstable (heavy vibrating/wobbling). When I then switch to decoupled boosters the freezing starts again (and again several messages from PRE about loading stuff) and when I get to the ground my orbiting vessel is suddenly gone. And then I switched to the 3rd center booster still traveling to the ground and it was just going Kraken crazy and when it hit the ground the whole game goes crazy and I'm suddenly traveling away from the Kerbal system at multiple times the speed of light... Also, clipping is much worse.
I don't have these issues with v1.9 (with 100 km range) in KSP 1.7.0. I hope these issues are known or can be tracked down and fixed!