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Hey guys. My game is behaving extremely bad, I got about 20 fps on the flight scene and the time label is always yellow Others scenes in the game are fine. Main menu: 180 fps (with an 6 to 7 sec lag to menus start its fading process) VAB: 80 .. 90 fps Flight: 10 .. 20 fps I'm not using any MOD, did a clean 1.7 install through STEAM; I had stopped playing for a few months, I believe that I stopped in version 1.5, by the time my laptop was performing fine in the game, obviously not compared to a top-of-the-line machine but he'd handle it. It kept about 45 to 60 fps on the flight scene, and the time label was always green. So when I installed 1.7 to play again, I noticed this issue. My settings are: I7 4700MQ 2.4 GHz (Turbo 3.3GHz) 32 GB RAM DDR3 1600 MHz GeForce 770M 3GB DDR5 SSD 240 GB M2 SSD 32 GB (Game installed here) Windows 10 Education Some facts and tests made: • All tests made here were without any MOD on version 1.7.2, unless otherwise noted; • The only peripheral connected to my notebook is my mouse; • Game is always running thru nvidia card; • I have both DLCs, I've already tried to play without them, no success; • The low FPS issue in flight scene seems to occur only in versions 1.7.1, 1.7.0 and 1.6.1; • In version 1.5.1 the game runs fine: a. Main Menu (both unmoded and moded): 180 FPS (less than a sec lag to Menu start its fading) b. UNMODED : 80 FPS c. MODED : about 38..40 FPS on flight scene; • Running game via Windows Clean Boot mode, no success; • Clean Windows 10 installation, I've played the game with only Windows (base, no updates), Drivers, Steam and KSP installed. no success; • With some deep tests I figured out the problem is due to Render Quality Setting (https://imgur.com/k8MkrQ6):. • Made the tests of Render Quality vs. Texture Quality on 1.5.1 (https://imgur.com/9tZ64vZ): Didn’t made tests thru lower Render Quality, higher ones speaks for themselves... • Tried to rollback Nvidia driver, no success; • In a New Career file, the FPS is a bit higher, 25 (Tier 1 launchpad)... but still the time label is flickering yellow and green. Then FPS goes low just after the loading disapear, while the screen is still black; • Steam Overlay is disabled, Windows XBOX overlay is uninstalled and Nvidia overlay is there just to show me the FPS counter, didn’t noticed any diference with it off. (While Nvidia overlay was off, i used the debug menu to check the FPS); • Max Physics Delta-Time per Frame: a. Minimum (0.03): 25 FPS (Time label always yellow) b. Maximum (0.12): 25FPS (Time label Always green) • Window Mode: a. Full-Screen: 25 FPS (as as it is my default screen preference) b. Windowed: 25 FPS c. Borderless: 26 FPS (due to a bit lower resolution I guess: 1680 x 1050) • Running with -force-d3d11 or -force-opengl, no success; • Tried diferent ships, no success; • Launched a rocket from launchpad at 20 fps... at arround 50 km high, fps suddenly raised to 25, so I had the idea of using the cheat menu to go do the others bodies (lowest possible orbit): a. Sun: 32 FPS b. Moho: 14 FPS (label yellow) c. Eve: 29 FPS d. Gilly: 26FPS e. Kerbin: 24 FPS (label flickering yellow/green) f. Mun: 33 FPS g. Minmus: 33 FPS h. Duna: 19 FPS (label yellow) i. Ike: 23 FPS (label flickering yellow/green) j. Jool: 31 FPS k. Laythe: 20 FPS (label flickering yellow/green) l. Vall: 14 FPS (label yellow) m. Bop: 23 FPS (label flickering yellow/green) n. Tylo: 23 FPS (label flickering yellow/green) o. Pol: 23 FPS (label flickering yellow/green) p. Dres: 21 FPS (label flickering yellow/green) q. Eeloo: 22 FPS (label flickering yellow/green) r. Random asteroid rendezvous: 33 FPS • Tried with an external monitor (1920x1080), no success; Key concepts: • Render Quality • Flight scene with low FPS, after version 1.6 • Main menu lag, after version 1.6 Hope someone here could help. I'm also in touch with official KSP support, but until now we can't figure out what is causing this issue... Thanks in advance! Sorry for the long post, here is a potato