DCS is very update dependent on the performance but generally speaking, you need some pretty high end gear to have a good experience.
Depending on what you want to do in DCS, you could be looking at something along the lines of an X3D cpu from AMD, 32GB of RAM (64GB if you plan on playing in the large multiplayer servers), RTX 4070 or higher, and large amounts of storage. As you eventually purchase more and more modules on DCS, that game can reach over 400+gb in storage.
Are you just testing the waters with the free module? Or are you half committed with at least a basic joystick and head tracking setup?