Video preview running slow

[Elihay 0]

Hi All

Video preview is running slow which makes the editing very frustrating

it happens in both project preview or individual video clip editing

How it looks: It takes while from the time I click to the time video start playing. sound start before. video is played in slow motion. video cursor is not sync to the displayed frame

I assume it is a matter of codec but I don't know how to fix it

I have latest photostage installed 7.50 on windows 10. I have k-lite codec packs installed

video clips are mp4 from Samsung S10 device.

appreciate your help to resolve this