The timbre and dynamics of sound samples used in scoring softwares (like Sibelius, notion and musescore) are not always very convincing. The build-in playback is very good at making nice music sound terrible. Also, the dynamics over the orchestra is at times out of balance.
There are, of course, many ways of improving the sound quality. I could find thousands of sound samples online. However, many samples are expensive, huge (tens of GBs, takes ages to download), and difficult to use (you need to adjust a lot of settings). On the top of that, after spending the money and time, I cannot guarantee that I will get a better sound.
So here is my question: what's the most efficient way of getting the sound of a score's playback better, if I do not wish to spend too much time on it?
I am willing to use a different softwares, so please suggest the best software for doing this.