Its takes longtime when you bidding for the campaigns, and there is the quick way to do it with Google Adwords editor.

Log in to Adwords Editor, open the specific account you want to bidding, and choose the status under data menu. Then, select the specific date period which you want to use. As you can see there are three options: Yesterday, last 7days, last 30 days. It’s good to use yesterday data for bidding.

Secondly, you can see there are several different tabs right side of the screen. Select Keywords tab. Then, from the left side of the screen select specific campaign you want to bidding for.

In the right corner of the screen, just under Google marks, there are advanced search in blue color, click it them a little window will be pop out. In the bottom of this window you can see performance statuses. You can choose CTR, in order to make sure you can select good performance keywords to bidding for (if you want).

After that, you can sort all the keyword by clicking Avg. pos column. Then select the keyword with position greater than 20, 10, 5 to do advanced bid changes. Detailed steps are:
Select keyword group with specific Avg pos, than in the bottom of the screen select advanced bid changes, you can change the bid by percent, or specific amount as you like. Click change bids button to finish. It all done.