I have those KRK monitors, as well as a few others (Focal, Adam, QSC, Avantone). I am also a real lover of home listening, which I often do on either the Focal’s Trios or Martin Logan’s.
First things first… the recommendation of making sure that you have adjusted for your room acoustics using Sonarworks or another utility is a critical step— preferably after you have treated your room (i.e. RT-60, bass response, room modes, etc). The same can and should be done with your headphones, if thet are used for mixing or mastering.
Assuming you have flattened things, monitors vary widely, as do people’s hearing— both individually and over time. Those are not exactly musical monitors, but neither are they ultra-emphasized or overly revealing. You mayor msy not find them appropriate for your listening choices, depending on your musical tastes and other factors noted. If you can’t or haven’t treated your room, try listening at lower levels (e.g. <85 dB or so), so thatyour room acoutics’ contribution will be a lower percentage of the sound.
So, if you have eq’d and afjusted as noted and you still cannnot enjoy, you may want to add other set of “main” mid’s or near fields. It is importat to know that it will translate, and that can help. However, the most important thing is generally to learn your monitors, and exactly how the relate and translate to typical “real world” listening experiences. However, that will not make it more “enjoyable” of a listening experience.
Now, one thing you might try is so ething like Audio Hijack, which will allow you to create different realtime listening environments (e.g. alt eq, compression, dynamics, etc). It is cheap too. This may provide you with a way to sweeten your VXT’s, and then allow you to switch to whatever adjusted mode is required. However, you still need to learn how whatever monitors you use translate— and for that, you just have to spend time. There are entire books written on each of the subjects touched briefly on here, but likely know that. I hope some of this at least helps a little bit.