benchmark: improved config for blob,file benchmark

PR-URL: nodejs#49730
Reviewed-By: Yagiz Nizipli <[email protected]>
Reviewed-By: Zeyu "Alex" Yang <[email protected]>
Reviewed-By: Matthew Aitken <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Rafael Gonzaga <[email protected]>
Reviewed-By: Stephen Belanger <[email protected]>

Author: H4ad

benchmark/blob/blob.js

@@ -4,7 +4,7 @@ const { Blob } = require('buffer');
 
 const bench = common.createBenchmark(main, {
   bytes: [128, 1024, 1024 ** 2],
-  n: [1e6],
+  n: [1e3],
   operation: ['text', 'arrayBuffer'],
 });
 

benchmark/blob/file.js

@@ -3,8 +3,8 @@ const common = require('../common.js');
 const { File } = require('buffer');
 
 const bench = common.createBenchmark(main, {
-  bytes: [128, 1024, 1024 ** 2],
-  n: [1e6],
+  bytes: [128, 1024],
+  n: [1e3],
   operation: ['text', 'arrayBuffer'],
 });