Hi, I bought a Macbook Air 2019 with 256gb SSD and base 8mb ram. Its my travel laptop. I use primarily Web, Office, Mail, trading apps. I can easily have 50+ Chrome tabs, 20+ Safari tabs, 20+ PDFs open. I work in several spaces. I noticed that there is lag when switching spaces and a general slight lag when switching between apps. This after just 1 week of use. Would returning it and ordering a 16mg ram configuration be more efficient and faster for my use? Thanks!