cpu hits 90ºc in seconds

https://preview.redd.it/uizmrizi16gh1.png?width=875&format=png&auto=webp&s=2b61352a76826e4ba265e434afe96b38aa850e65

https://preview.redd.it/htag467k16gh1.png?width=1531&format=png&auto=webp&s=a528656c8471628b4007fa486f386019d2c1f28b

https://preview.redd.it/7dka0hzk16gh1.png?width=1633&format=png&auto=webp&s=3607fa2a3f279bbfe3aa1b48ae21cd3a09f0759c

bought this pc 2nd hand couple days ago, cpu says its 90ºc and it runs like shit anything i can do to fix it? (idk if this screenshots are enough)