I guess there should be a thunderbolt 2 port on your Mac Air (which can go up to 20 Gbps). Try to take advantage of that. Also, as suggested by the admins SSD would be a great choice. SSDs can have data transfer speeds significantly faster (like 10 to 40 times faster depending on the other drives).
Also, While scrubbing through complex timelines, an SSD may be superior to a hard drive. But most editing tasks such as cutting and applying effects shouldn’t change much.
Also, While scrubbing through complex timelines, an SSD may be superior to a hard drive. But most editing tasks such as cutting and applying effects shouldn’t change much.