You need to address specific comparisons. Non-speed force users usually have other specific mechanisms for dealing with the consequences of their speed, and they are often specific to that character.
If I can say anything in general, then speed force speed tends to have more advantages than non-speed force speed of equivalent magnitude. However, speed force users are vulnerable to anything that mucks around with the speed force.
Non SF speedsters in general come w. secondary super powers, so they dont burn up, fly off the planet at speed, break the necks of ppl they save (or burn them up).
There arent any real disadvantages really, unless a story is specifically written to feature a weakness.
Wally West himself post Crisis had to deal w. the enormous amount of calories he burned, and other introduced speedsters had issues as well. Again, these were played for the drama.
You're talking about how they're written now, not the powers themselves. There is a difference.
For example, Superman can only do what he does because he's doing the math in his head: Longitude, latitude, how fast he can fly/run without causing sonic booms, etc. So yes, technically there are disadvantages, whether the writers bring them up or not.