weak in maths

hi people, i guess everyone of us has our own archille's heel - for some, its maths for those from non-maths background and verbal/eng for others

i am not a maths person - my degree is in business admin and its not very quantitative. As such, i have more problem with my maths (esp geometry) in gmat's context as compared to the english aspect

i know ideally, it makes sense to strengthen my maths but in face of time constraint, wld it make sense to "forego" the specific topics which are bogging me down (like geometry in my case) and instead concentrate on oher areas which will prob yield a better ROI

kindly advise - thank you!