deciding my ibdp subject

i just started with my IBDP .
My current subjects are :-
English, Lang B ,and theater SL
BM ,Math AI , comp sci HL
I am not a very academically inclined student and i need help deciding if i should do Design and technology HL or Computer Science HL
I have no background in either of the subjects and i do not have time to decide between the two.
I cannot take both subjects as they are not fitting with my timetable . what subject should i pick ? I need a subject that will be easier to comprehend and easier to score .