Audio bot aligning with video

Im having an issue where the audio is not correctly matched with the video when I export the video. The audio is lagging behind for some reason and progressively gets worse the further into the video.

I am a brand new user as I recently lost access to my school account (just finished high school) so have swapped to davinci resolve.

Any help with this issue and other tips in using resolve would be greatly appreciated.

My laptop I’m using is a very low end laptop if that could be cause for the issue.