Would I be able to adjust the column width of the item table?
Yes! To do so, please checkout the following steps:
Tap the gear icon on the top right corner and choose Templates
You would be redirected to a page where the predefined templates are displayed. Click on the Edit button of your default template.
The template edit page opens up. Tap on the Item table section on the left pane and enter the width of each column according to your preferences.
Preview the changes you made and click on the Save button.