Running on the spot or very slow

I got this on sale today..ps store for ps4 pro..I'm up to the bit where you have to escape the crypt..and have been eaten by rats 10 or 15 times .. because when I press R2 to run it runs for 1 second then slows down to a crawl like amicia is almost running on the spot ..please sort this out

you need dualshock4 from fat or slim (not pro). This the only solution...
After 1 year this game is still unplayable on ps4 pro. Devs can even anser, so pathetic