I'm a BME Undergrad w/ horrible grades, contemplating switching my major. Need Advice.

I'm a student majoring in Biomedical Engineering at Boston University which is a top 10 undergrad school for that major according to various rankings. However as of now I have a 3.0 GPA and the chemistry and biology courses are a lot harder for me than I bargained for, and don't interest me AT ALL.

I should mention that I'm a 2nd semester sophomore at the moment. My fear is that I don't see the classes getting easier any time soon, and so I will graduate with something around a 3.0. First this makes it almost impossible to get internships over the summer due to more competitive applicants being out there. Second, in a negative feedback loop with a shitty GPA and lack of resume experience, I won't get into a good grad school, thus dooming me to a life of shit...

I've been contemplating switching to Computer Science or Computer Science Engineering. Almost none of my credits transfer over so I would need an additional 4 years to graduate on top of the 3 semesters I've already done. I've done a little bit of programming in my free time and enjoy it but can't be certain my grades would be any better than I'm currently getting in BME.

So I guess what I'm asking: between 2.9-3.0 GPA from top 10 program in BME or assuming slightly better grades in CS/CSE, which is the more career-oriented decision?