S25 Ultra vs. Tiktok

Ok please tell me I am not the only one struggling BADLY with this!? So I upgraded my S22 ultra to and S25 Ultra and lately it aint been agreeing with tiktok! I upload regularly and everything but since upgrading things have been difficult to say the least. Like I struggle with lag when it comes to editing and with the video fully edited it seems like the video lags after its uploaded, like it looks bad!

Is this a Samsung thing or a Tiktok thing and is there a way to remedy this issue?