As we may understand this video is from Panasonic first NV-3085/WV-3085 EIAJ portapack VTR Portable Video System.
This is an early 1/2-inch color video camera model Panasonic WV-3085 together with Panasonic NV-3085 portable video cassette recorder announced on 26 October 1974 at list price 1750$:
https://books.google.com/books?id=swcEAAAAMBAJ&pg=PA49&dq=1974+Panasonic+WV-3085
https://books.google.com/books?id=bAEAAAAAMBAJ&pg=PA18&dq=Panasonic+NV-3085
Early video camera model Panasonic WV-3085 EIAJ portapack VTR:
https://www.rewindmuseum.com/vintagecamera.htm#wv3085
Panasonic NV-3085 portable recorder:
https://www.rewindmuseum.com/colourreeltoreelvideo.htm#nv3085
Probably VCR format used was 240 lines or 330 lines, the expected video quality may be seen at the video sample here:
http://www.dctvny.org/documentaries/cuba-people-part-i
More information regarding the recording standards these days (page 21-24):
http://videopreservation.conservation-us.org/vid_guide/video_guide.pdf
You may only add FX effect (Brightness/Contrast/Gamma) with Brightness=-10, Contrast=3 (the video is very bright). Nothing else could be done here.
The original video format used is 4x3 and probably it is already properly done (there are black edges from both sides and the video is approximately 4:3 format). Then the video may be exported in VideoPad at original format 1920x1080 at 30 frames/sec mp4 file.