Hi, Also new here but I have a little experience with the game and try to offer a bit of help when I can. My first suggestion which is always my first suggestion is to search your PC for any of the programs that cause incompatibility errors. The Biggest trouble maker is Lavasoft. You can find a list of the offending software here: Crashing on start? Read this! UPDATED October 18, 2016
Secondly, try rebooting the game in 32bit mode and launching to see if that improves game play ability.
Good Luck 