otis23
Hi, sorry for the inconvenience caused.
We take the lagging issue seriously and will take a further look into it.
If possible, we hope you can share with us your logs. Logs will record some information that helps us debug.
You just need to click Global Settings, change the Logging Levels to "INFO", then reproduce the playback issue, then click the BUG icon in the upper-right corner of Global Settings, and send us a bug report (tick "upload logs" box).
