summer school marks

how important are my grades in summer school? im asking as an ib dp1 student taking physics 11 rn to fulfill the ubc faculty of science requirement.

knowing that i'll likely meet the waiver exception from my predicted 7s in ib math aa and chemistry, is physics still worth finishing and will it still be taken into consideration for admission? or should i drop it (will probably get 80-85 cuz i didnt lock in and teacher kind of sucks)