@abd1 My apologies for the late response. My wife got called back to work early which changed our vacation and plans.
A few thoughts...
1. it's not the speakers, which is important to state.
2. If you haven't already done so, I recommend getting a friend to help you with moving the speakers around so you can evaluate from the listening position as the changes are made. An audiophile friend will allow for two sets of ears on the changes / improvements heard from speaker movement.
3. For clarification, the toe-in with the cross over intersecting in front of me was for illustration purposes to make another point. My standard setup has the speakers intersecting behind my head.
4. Though our individual speaker and listening positions may be helpful, given YOUR room, I would only use them as a rough guide.
5. You may have already done so, but if it were me...given your room...I'd start with extreme near field positions for the speakers and you to eliminate first reflections. THEN, I'd move the speakers wider and your listening position further back by small increments UNTIL the point that the first reflections come into play (rear their head). THEN pull that position back in (slightly). IF you can live with that arrangement, you should be set.
6. IF NOT, look into room treatment as others have mentioned. See if you can get a dealer loan for Stillpoint Aperture II panels with stands. They are pricey, but effective. They allow for easy movement (to test effectiveness) and temporary placement...which may be an advantage in your particular room and for your aesthetic needs. At a minimum they will inform you of the degree your room is involved and give you a starting point to address.
As is usual, I'm multi-tasking at this time of day....I'll follow up with more should I think of additional points.