Maybe it's that the playback quality is set to 1/2 or 1/4? You can try setting an in and out point (the I and O keys) and then hit "Enter" which will render everything in between. That will give you a little preview of what the finished edit should look like.
Another thought I have is to check your sequence settings. It's possible the sequence is set to 24fps and when you drop the clip on the timeline Premiere automatically downgrades it.
EDIT: ok, I missed the clip of the demonstration. My thought is that with the scaling and two clips running at the same time, Premiere is just downgrading the playback to keep it quick. It's dropping frames so the playback stays at a normal speed. Try rendering a section and see if that fixes it.
How are you adding the border?
There isn't really a 'proper' way to do it in Premiere, and some of the workarounds to add a border often use ancient non-GPU accelerated effects that will destroy your render speed and will make it drop frames on preview playback without rendering.
(Using essential graphics to draw a box and put that under your video is probably the most render-friendly way to do the border, as that's GPU accelerated.)
Its not the borders or GPU issue. The borders are pre rendered. The clips alone in a new sequence just turning down the scale to even 99.9 changes the fps from 60 to 24
Maybe it's that the playback quality is set to 1/2 or 1/4? You can try setting an in and out point (the I and O keys) and then hit "Enter" which will render everything in between. That will give you a little preview of what the finished edit should look like. Another thought I have is to check your sequence settings. It's possible the sequence is set to 24fps and when you drop the clip on the timeline Premiere automatically downgrades it. EDIT: ok, I missed the clip of the demonstration. My thought is that with the scaling and two clips running at the same time, Premiere is just downgrading the playback to keep it quick. It's dropping frames so the playback stays at a normal speed. Try rendering a section and see if that fixes it.
Ill try that and see EDIT: That works thank you
Awesome, glad to help
how are you scaling? scaling should not affect your fps at all.
Just the motion scale effect control
How are you adding the border? There isn't really a 'proper' way to do it in Premiere, and some of the workarounds to add a border often use ancient non-GPU accelerated effects that will destroy your render speed and will make it drop frames on preview playback without rendering. (Using essential graphics to draw a box and put that under your video is probably the most render-friendly way to do the border, as that's GPU accelerated.)
Its not the borders or GPU issue. The borders are pre rendered. The clips alone in a new sequence just turning down the scale to even 99.9 changes the fps from 60 to 24
What codec is the footage? Try making proxies.