I have a serious problem and have spent a week trying several solutions without success; getting tired of it now and need help. First off my full rig and specs: CPU: 8700K @ 5.0GHz GPU: RTX 2080 (MSI Gaming X Trio) RAM: 2 x 8GB DDR4 3000Mhz Boot Drive: 970 Evo SSD Steam Drive: 8 TB HDD Monitors: 3 x 27" 144Hz G-sync Monitors OS: Windows 10 Home version 1903 Wheelbase: Fanatec CSW v2.5 Steering Wheel used: Fanatec F1 2018 LE Pedals: Fanatec CSP v3 inverted Other gear: Fanatec ClubSport Shifter SQ V 1.5 and ClubSport Handbrake V1.5 (attached to Wheel), Logitech G27 Shifter as a button box (connected with Leo Bodnar adapter) Config used to test in R3E: Single Player Practice session Car: FR X-17 Track: Spa AI opponents: None Description of problem: At random points in time (sometimes at start of lap 1 in the pits, sometimes 10 laps in), the game will start to visually stutter for the rest of the session: The FFB in the wheel starts to stutter as well (feels very notchy) as well as missed shifts, and the audio also stutters: revving the car sounds more like a piano playing notes than a smooth change in pitch. Looking at RTSS in-game and the graphs in Afterburner, framerate (110 - 141 FPS) and frametime (7 - 9ms) stays consistent with previous laps before the stutter started. GPU and CPU graphs also remain consistent. When I return to the menu in-game, the counter then drops to 6-7 FPS and it is visually slow. Return to the track after that and it's stuttering again immediately, but again RTSS shows everything normal (141 FPS in pits). Exit to main menu i.e. quitting the race session and FPS goes to 45 FPS. It's normally at 68 FPS. Game will not return to normal unless you restart R3E. Before the stuttering started, I had RaceRoom crash 60 mins into a 90 mins multiplayer race. The visuals permanently froze but the audio and FFB was still working. Had to use Task Manager to exit. Game runs at 5864 x 1080 @ 144Hz. I've used S3's Web Dash, the OtterHUD Web Dash, the standard R3E Dash and No dash...problem exists in all configurations. Problem only exists in RaceRoom; No problems in Assetto Corsa. Here are all the steps I've taken to fix this (in the order I did them) based of previous threads with similar problems. Ran game after each step but eventually stuttering returned. Reduce shadow quality, contact shadows, AA and # of cars. Steam Integrity check (no errors) Removed S3 Web Dash files and removed the web dash launch code from steam Full uninstall and reinstall from steam + Erasing all User data (backup car setups to separate location) Erased Raceroom's Cache folder in My Documents. Erased X64 folder in raceroom and then did Steam integrity check to have them replaced. Installed all pending Windows updates. Ran windows System File Checker (sfc /scannow) and if found and fixed a few corruptions/permissions errors. Used DDU to remove everything GPU related in safe mode, clean install of latest Nvidia drivers (436.15) and setup Nvidia surround again. **This step did fix some visual slowdown I would have when hovering over certain apps (Dropbox, Bluestacks). PLEASE NOTE: I do not have Dropbox or Bluestacks running in the background when playing R3E.** Installed OtterHUD and tried all performance options. Assigned programs to different CPU cores. RRRE64: Cores 1 - 6, CrewChief: Cores 7 and 8, RRREwebbrowser: Cores 9 - 12. Downgraded Fanatec Drivers from v336 beta to the certified v328. Downgraded Motor and Steering wheel firmware as well (Wheel being used is the F1 wheel). Turned off Force Feedback on in R3E as well as on the wheel. Deleted controller profile in RaceRoom and created a new one. I have a race tomorrow in a series and need the game to be solid. The only thing I haven't fulled tested yet is Running R3E in 32-bit mode; will do that shortly. Please help somebody.