DCS World is working by patching the game and following the on-screen instructions but depending on your region you might need to change some settings to get smoother motions as DCS works with XML files to output the data.
DCS needs a patch to function, following the below steps will allow you to enable telemetry for DCS.
In some occations a dialogue will appear displaying "Game Did Not Patch?" In this case you need to repeat the above steps. It should patch the second time.
The issues with the motion are due to your settings in windows and only some people will encounter the issues. If you experience the motions being very rough, you might keep on reading. The reason for the issue is related to your language and how you do comma separation (, or .). If your default OS language uses 1.000,00 (Most of Europe) You will need to change your settings. If you use 1,000.00 (United States etc.) you will not encounter the issues.
By following this guide, you will change your comma separation without changing language or region.
Click the start menu and go to settings
Go to Time and Language
To the right press the Additional date, time, & regional settings
press Change date, time or number formats
go to additional settings
In the field "Decimal symbol choose the (.)
Press OK and close all open windows
Restart the computer and check the settings in SimTools to be sure you have the right settings for DCS. You should now have normal movements and feel the smoothness of flying!