Inherited site with high Spam Score backlinks

[Donsimong]

When building backlinks myself I have been conscious to avoid going over the 30 spam score as recommended on Moz somewhere. But one of the sites I have recently started working on: https://www.osborneplanning.uk/
has a number of very high spam score backlinks, 5 above 50. Some are follow some nofollow. 
I am wondering if its a good idea to disavow them, or should I just leave them as they are, I have read some suggestions that Google will just ignore the majority of spammy backlinks, and its better just to keep them, I dont want to start deleting links if they don't cause any problems.

[Alick300]

Hi,

IMO you should disavow them  just to be safe.

Thanks