+1 Changing your cables will change how your system sounds. Different isn’t necessarily better. One option is to keep trying cables until you find the sound you think you’re looking for — that’s a slippery slope. Try loaner cables, www.thecableco.com has a lending library that is helpful.
There’s something to be said for enjoying your system as it is while upgrading over time. You can burn through a lot of cash and drive yourself nuts trying to do too much too quickly. Enjoy the journey, the destination will arrive before you know it. Good luck!