
Explanation:
Box 1: Live Query Statistics
Live Query Statistics as it a percentage of the execution.
Box 2: Key Lookup
The use of a Key Lookup operator in a query plan indicates that the query might benefit from performance tuning. For example, query performance might be improved by adding a covering index.
Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/performance/live-query-statistics?view=sql-server-ver15
https://docs.microsoft.com/en-us/sql/relational-databases/showplan-logical-and-physical-operators-reference