*HELP* Sound delay/mush only with soundbar

[KraZoaa]

Hello guys,

my english is not the best, but ill try to explain the problem as good as possible:

my setup:
LG OLED 55 C17
LG soundbar DSN8YG
my swiss modded GC (v0.6)

When i play only with the TV sound on, the is no input lag, everything works fine.
But when i use the soundbar, weird things happen:
When i play via bluetooth, i got a sound delay (300ms)
When i play via HDMI ARC or optical cable, there is no sound delay but after 2 min. there is a weird sound coming out of the box and suddenly it sounds like it would explode, but continue to work.

I also asked the LG service team. They said its because of the analog audio signal coming from the GC, the receiver cant convert it in a digital audio signal. Does this make sense?
But why is it working for some time?

If someone could help me, it would be lovely! Playin NFS U2 with soundbar is just 10 times better.. or starfox adventures

[Papy.G]

Can you explain more how all this setup is wired?

Is your setup Dolby Prologic compatible?

You can usually adjust sound delay on recent TV sets, not sure which of video or sound is late?