This isn’t normal, even if you have a high terrain LOD. Most of your threads have an extremely high frametime, which suggests a possible CPU performance issue. Is your CPU throttling due to thermal constraints? Check HWInfo while running MSFS and make sure your CPU isn’t throttling down to high temperature, and verify your cores are running at the correct frequency. Look for anything highlighted in red, as this means outside normal ranges. You can post a screenshot if that helps.