Hong Kong Disneyland (1991) - PAL/NTSC encoding mismatch?

An excerpt of an 8mm tape of Hong Kong Disneyland in, according to the timestamp, 1991. I found this tape at a flea market in Kowloon in 2018 amid a pile of discarded hard drives and cell phones. I'm not sure if the glitchiness of the video is due to environmental factors/magnets or the fact that this was likely recorded on a PAL camcorder and then recorded here on my NTSC equipment.