# Huge playback lags on Switch **URL:** \ **Category:** Unreal Engine\ **Created:** [February 3, 2020, 4:05pm UTC](https://qa.fmod.com/t/huge-playback-lags-on-switch/15433 "2020-02-03T16:05:00Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![KrzysztofSiewiorek\_T](https://avatars.discourse-cdn.com/v4/letter/k/7c8e57/32.png) [@KrzysztofSiewiorek\_T](https://qa.fmod.com/u/KrzysztofSiewiorek_T)\ **Post date:** [February 3, 2020, 4:05pm UTC](https://qa.fmod.com/t/huge-playback-lags-on-switch/15433/1 "2020-02-03T16:05:00Z")
We are using FMOD on our switch project. We have an issue of huuge lags on loading/playing audio samples in some situation. When the sample is not being used for a long time, or it is supposed to be played for the first time, or right after streaming some big samples ( like music ), samples are being played with a big lag. Sometimes it’s even like 5-7s. I thought that maybe it’s IO issue, but after turning off streaming on everything exept music it’s still thesame. Any ideas what might cause the issue ? Thanks! ---
**Author:** ![KrzysztofSiewiorek\_T](https://avatars.discourse-cdn.com/v4/letter/k/7c8e57/32.png) [@KrzysztofSiewiorek\_T](https://qa.fmod.com/u/KrzysztofSiewiorek_T)\ **Post date:** [February 5, 2020, 9:41am UTC](https://qa.fmod.com/t/huge-playback-lags-on-switch/15433/2 "2020-02-05T09:41:46Z")
Resising Initial Audio Memory Poll Size to 128Mb, overriding Compression Time Threshold to 5sec, and changing codec do Vorbis halped a lot - but not totaly. There is still some playback lag - specially when playing sound for the first time. It happens to be up to 0.3-0.5s. We would still like to have it as it should be. ---
**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\ **Post date:** [February 13, 2020, 4:23am UTC](https://qa.fmod.com/t/huge-playback-lags-on-switch/15433/3 "2020-02-13T04:23:59Z")
Have you tried using the Studio Profiler to see what is causing the issue? [https://www.fmod.com/resources/documentation-studio?version=2.0&page=profiling.html](https://www.fmod.com/resources/documentation-studio?version=2.0&page=profiling.html) It sounds like it could be caused by sample data loading at the time the event is being played, for non-streaming assets you can load the sample data ahead of time to avoid the loading delays. [https://www.fmod.com/resources/documentation-api?version=2.0&page=studio-guide.html#sample-data-loading](https://www.fmod.com/resources/documentation-api?version=2.0&page=studio-guide.html#sample-data-loading) ---
**Author:** ![mgalach](https://avatars.discourse-cdn.com/v4/letter/m/94ad74/32.png) [@mgalach](https://qa.fmod.com/u/mgalach)\ **Post date:** [February 13, 2020, 10:14am UTC](https://qa.fmod.com/t/huge-playback-lags-on-switch/15433/4 "2020-02-13T10:14:24Z")
I had same issue on 20006 on PS4 even if all sample data was loaded, updating to 20007 fixed this for some reason, but it was not mentioned in changelog.