Something that changed my experience significantly, I installed the Beta version of DCS and magically every problem I had to live with disappeared, stutters, freezes and even the occasional crash joining servers was gone.
Windows 10 Pro Gigabyte 970A DS3P FX AMD FX6300 Vishera 3.5 Ghz ASUS STRIX GeForce GTX 970 Overclocked 4 GB DDR5 16Gb Patriot Viper 3 RAM DDR3 1866Mhz Onikuma Gaming Headset (has annoying blue lights I don't use)