Hi guys, so i have a 15 rMBP 2.3ghz/16gbram, i'm doing RNA sequencing data analysis, which requires me to edit large excel files...10mb. every time i try to edit a box, it kind of lags behind...like i can type a word and it'll appear maybe 3-4 seconds later. so my questions are: 1. is this because i don't have enough processing power? because it says i still have 12gb of ram free. 2. does anyone experience the same type of issue i have? 3. is this normally expected?