Thanks
@zeinharis when I turned off wifi my 990 issue resolved! So just can't use wifi. To many things in close proximity to each other causing interference.
Like
@Canabuc I am using a close to top of the line phone S20 G5 so not very old and should have plenty of CPU ability.
I'm the end though this just shows that LDAC as a standard has definite issues. Unfortunately APTx LL seems to be costly because not enough manufacturers are picking it up, with Samsung leading that charge...

. I know I can root my phone to get it enabled but my phone is to integral for work and on my dime so I can't afford to play games with that type of thing.
Good news is most of music is right on my phone so I don't need to stream much so turning off wifi isn't that big a deal for me.
Edit: now that I can hear 990 without interuption my old ears are struggling to hear a big difference (may also be my files that can be the limitation) plus I still get a bit of interference. So I think I will just live with 660 as it's good enough for me.