You can save a lot of time by using appropriate movement commands in vi or vim text editor. For large file the cursor keys are not the best choice. To move to end of file just type G (press ESC and type capital G):vim
You can jump back to beginning of file by typing any one of the following command
1G
OR
gg
You can jump to line number 700 (press ESC type 700G)
700G
api