First one is i cannot click by using right mouse button on items in hangar, cargo etc. i mean theres no drop down menu so i cant perform many actions
Second is sometimes my client starts very laggy and it stays like that when logged (lag, shuttering, freezes) until i close it only by using windows task manager (closing game normally dont fix this)
There are a few things you can try, if you haven’t already:
Clear game cache, this could possibly help you fix your bug and/or your lag issues.
Reduce graphic-settings, should help make the game less laggy.
Reinstall the game, don’t forget to save a copy of your overview settings if you want to keep them.
If you want to save you overview-settings on the server side you can create a (private) chat channel and drag’n’drop your Overview in the MOTD of your (newly) created chat channel.