Bounded relative date values should be used whenever appropriate
Impact area
Performance
Severity
Medium
Affected element
Report
Rule ID
SF-0139
Impact
Using open-ended time range queries in Reports can significantly impact their performance.
Remediation
Try using relative date values such as THIS WEEK, NEXT MONTH, or TOMORROW. This works well for saved reports for a specific, but relative time period—for example, Last Month’s Leads.
Time to fix
30 min
References
See the Salesforce documentation resource: Improve Report Performance > Best Practices