You have several things to consider-
1. Screen clips only record the screen pixels, hence the limited ppi. Any screenshot procedure will create the same result.
2. The video may only be low resolution. So magnifying on your monitor [CTRL+"+"] will only 'blur' the image. (Although your screen-clip will contain more pixels for a higher ppi)
3. Your image at 65ppi may be the best you can achieve in the album. Even re-sizing in Photoshop to a larger size will have an effect similar to that in 2.- a blurred image no better than the original.
Thanks for your reply,
And do you think it won't print well on my photo album if I leave it in full size page regardless of the low resolution ?
Here is a suggestion- Maybe your "screenshots" are already using this method? I didn't learn this from your original post!
Play the video in software that will allow you to take a "snapshot" using the video player interface (not a screen dump or screen-clip). This will produce an image that is the exact same pixel size as the video (eg. 1080x720) regardless of monitor screen size.
I know that VLC Player (VideoLan) can do this. On the VLC menu > Video > Take Snapshot. (options for png jpg tif)
This is the best resolution you will get from the video.
Re-sizing larger with Re-sampling in Photoshop may be of use if it can do a good job.
Try viewing your image in the LR book module, single page at 1:1, you may be surprised that a low ppi will still give an acceptable print in an album.