I used to have problems with an older sound card (I'm stingy when it comes to audio) but, I decided to upgrade to an ASIO card and it makes a big difference. That is definitely an upgrade to invest in first. My system is an ASUS mother board that is at least 8 years old but with a quad core CPU and 4 gigs ram. I also added some SSD drives (one for windows XP - Some software doesn't run in Win7 and above, one drive for Windows 7 and another for Windows 10 which allows me to use whatever OS I need at the time)
So, try a new ASIO sound card (I have an Audigy) and then a SSD drive. If you have 4 gigs of memory or more, you should be OK.