HL is harder than calculus BC. It’s designed for future math/STEM majors, but it’s very difficult to get a 6 (let alone a 7. )
SL, on the other hand, is roughly equivalent to Calc AB + Stats. It shouldn’t be too hard to get a 6, but it’s not as good as HL for a CS major, especially since your school doesn’t offer CS as a science.But HL 4 or 5 is even less good than a 6 SL. So, definitely talk with classmates but mostly with your math teacher, the HL and the SL math teachers, etc.