Question reguarding effect on timeline after adding preset to clip

[Charlie5CCF]

I have this clip i was experimenting with getting to know a host of presets i recently downloaded. Basically and all attach a clip i went to a random spot in my clip and i made two cuts. I then added the preset to the part i had cut. Afterwards im not sure what the correct name is for the blue thin line is that goes through the clips (marker?) but after it rns of the clipped part of the sequence it starts moving like 100mph. Im not sure if its i dont fundementally understand something about PR or why it does that. Thank you

[The Matia]

I think the thin blue line is the 'Playhead'.

Are you saying that when you playback the sequence, the speed of playback suddenly increases after it's gone past the clip with the effect applied?

I saw another post here, but it said to check the Audio Hardware Settings - linked a small guide.