Jose has a limited AdWords budget, and his ads aren’t showing as often as he wants. How might he improve results without spending more money on the campaigns limited by budget?
Replace his 3 most expensive keywords with lower-priced keywords
Slightly lower bids
Choose accelerated instead of standard delivery
Slightly raise bids
While counter-intuitive, slightly lowering your bids in campaigns that are marked “limited by budget” could potentially help you earn more clicks. Lowering bids for budget-constrained campaigns could reduce the average amount you pay when someone clicks your ads, with the potential for your budget to go further and get more clicks.
Read more here: https://support.google.com/adwords/answer/2375418