keep in mind that with SFH 1×1, the acceptable quality is located between 0 and 5, not 0 and 4. So if you see 95% between 0 and 5, then you are fine.
DTX DL DISABLED = OFF indicates that the DTX is NOT disabled, so that sounds about right to me.
Quality improvement will be reached if you increase HR usage (that reduces the RF load), and if you increase the downtilt / reduce antenna height.
SFH1x1 is very sensitive to antenna design, you must reduce cell coverage as much as possible. That’s why doing the “exit” HO asap is important as well.