That's just the way it is; each line needs to be fairly long to report all the data we collect for each transaction. You might try using the Zoom or Text Size menu options in your browser to shrink things down a bit. Also note that you can simply click on any row to highlight that entire row, which makes it easier to follow across the full width.
Furthermore, you can download any log view to a file on your computer, which you can unzip and open in any spreadsheet program such as Excel, iWork Numbers or (free) Gnumeric.
