Problems and Nice to Haves CDJ-850 and Cross 2.3

Hi,
after some isses of not being able to write in this forum I can finally do so.
Thanks to all for the help!
I already read quite a lot threads about Cross but for my problem I could not find any help, so I hope it's ok to start a new topic.
As mentioned in the title I'm using Cross 2.3 in HID mode with a pair of Pioneer CDJ-850 players. So far it is working really good except for some latency problems in synchronizing the displays. (inner lighting jogwheel and scrolling through playlist is not as smooth as in USB or Disc mode - But that is only some design issue which does not affect the sound)
The big problem for me however is the following:
While using the CDJs in PC mode with the software it is not possible to change to USB or Disc mode without having a 2-3 seconds lag in Cross. When changing back from USB to PC, the lag is also there. I figured out that it is due to the changing settings of soundcards. But if e.g. "Player A" is playing and it useses "Output 1/2" of my first CD player why does it lag when I turn off PC mode on the second CD player responsible for "Player B" using "Output 3/4"?
Is it possible to fix this issue or would it at least help to use an independent external 2 channel soundcard?
Another thing which does not really bother me but would be a nice to have:
Is there an option to monitor the current playing track title and waveform also on the CDJ-850 directly? Up to now I only see the playlist there all the time but in the demo video showing Cross with a CDJ-2000 the waveform is displayed aswell.
Best,
RG
after some isses of not being able to write in this forum I can finally do so.

I already read quite a lot threads about Cross but for my problem I could not find any help, so I hope it's ok to start a new topic.
As mentioned in the title I'm using Cross 2.3 in HID mode with a pair of Pioneer CDJ-850 players. So far it is working really good except for some latency problems in synchronizing the displays. (inner lighting jogwheel and scrolling through playlist is not as smooth as in USB or Disc mode - But that is only some design issue which does not affect the sound)
The big problem for me however is the following:
While using the CDJs in PC mode with the software it is not possible to change to USB or Disc mode without having a 2-3 seconds lag in Cross. When changing back from USB to PC, the lag is also there. I figured out that it is due to the changing settings of soundcards. But if e.g. "Player A" is playing and it useses "Output 1/2" of my first CD player why does it lag when I turn off PC mode on the second CD player responsible for "Player B" using "Output 3/4"?
Is it possible to fix this issue or would it at least help to use an independent external 2 channel soundcard?
Another thing which does not really bother me but would be a nice to have:
Is there an option to monitor the current playing track title and waveform also on the CDJ-850 directly? Up to now I only see the playlist there all the time but in the demo video showing Cross with a CDJ-2000 the waveform is displayed aswell.
Best,
RG