Update pipeline/processors/README.md

Co-authored-by: Alexa Kreizinger <[email protected]>
Signed-off-by: Jorge Niedbalski <[email protected]>

Author: niedbalski

pipeline/processors/README.md

@@ -1,6 +1,11 @@
 # Processors
 
-Processors are components that can modify, transform, or enhance data records as they flow through the Fluent Bit pipeline.
+Processors are components that modify, transform, or enhance data as it flows through Fluent Bit. 
+Unlike [filters](../filters/README.md), processors are tightly coupled to inputs, which means they
+execute immediately and avoid creating a performance bottleneck.
+
+Additionally, filters can be implemented in a way that mimics the behavior of processors, but
+processors can't be implemented in a way that mimics filters.
 
 ## Available processors