If you have just started with papers or haven't done enough to feel that you are absolutely confident with tackling spesh exam papers, I wouldn't stress. If you are trying your best atm, then that's good. But at this stage, I think you should be focussing on getting the answers right, (not letting distractors get to you). I think after a while, the same types of questions will constantly repeat, and you know exactly how to figure them out without even thinking because it is that repetitive.... then you'll naturally see that you will get through the multiple choice quicker.
Also, consider the approach you are taking in multiple choice. Do you do them first or after short answer? For methods, during reading time I read all short answer section and take time to read over questions that are pretty wordy and confusing, then I'll take a look a some multiple choice questions I can do in my head. THen when writing time starts I answer probably like 5 multiple choice questions, then go straight to short answer.
Then once I'm finished with short answer, I finish with multiple choice. It's a good approach for me because you can't really rush with short answer or guess any when time runs out. Even if you are racing against the clock, adrenaline kicks in and you somehow do multiple choice quicker. (that doesn't work so well with short answer)