Overloaded starter relay
There are various wiring supplies outfits, most particulary marine oriented, that have such things as pedestal mount insulated studs for junction purposes. You could buy one, run a jumper from the relay to that stud, and relieve some of the mechanical strain. So long as it is a good mechanical/ electrical connection, and is not stressing the stud mechanically, it won't actually hurt anything.
https://www.google.com/search?q=mar...BbA1kQ_AUoAnoECAIQBA&biw=933&bih=436&dpr=1.71
Just one example: I am NOT either endorsing or dismissing this item as good or bad, just simply one example
Amazon product ASIN B09B2KSGZ9