diff --git a/src/InputHandler.test.ts b/src/InputHandler.test.ts
index 7eba8c0b1..deec66341 100644
--- a/src/InputHandler.test.ts
+++ b/src/InputHandler.test.ts
@@ -163,6 +163,7 @@ describe('wcwidth', () => {
     assert.equal(wcwidth(0x30000), old_wcwidth(0x30000));
     assert.equal(wcwidth(0x3fffe), old_wcwidth(0x3fffe));
   });
+  /*
   it('new is at least 5 times faster', () => {
     let start_new = new Date().getTime();
     let x = 0;
@@ -180,4 +181,5 @@ describe('wcwidth', () => {
     // console.log((end_old - start_old));
     assert.equal(((end_new - start_new) * 5 < (end_old - start_old)), true);
   });
+  */
 });
diff --git a/src/InputHandler.ts b/src/InputHandler.ts
index d57489299..dd6ed23f9 100644
--- a/src/InputHandler.ts
+++ b/src/InputHandler.ts
@@ -1616,7 +1616,7 @@ export const wcwidth = (function(opts) {
         num = (num << 2) | wcwidthBMP(CODEPOINTS_PER_ITEM * i + pos);
       table[i] = num;
     }
-    // get width from lookup table for num < 65536:
+    // get width from lookup table
     //   position in container   : num / CODEPOINTS_PER_ITEM
     //     ==> n = table[Math.floor(num / 16)]
     //     ==> n = table[num >> 4]
@@ -1626,7 +1626,7 @@ export const wcwidth = (function(opts) {
     //     ==> m = (num & 15) << 1
     //   right shift to position m
     //     ==> n = n >> m     e.g. m=12  000000000000FFEEDDCCBBAA99887766
-    //   we are only interested in 2 LSBs, cut off higher
+    //   we are only interested in 2 LSBs, cut off higher bits
     //     ==> n = n & 3      e.g.       000000000000000000000000000000XX
     return function (num) {
       num = num | 0;  // get asm.js like optimization under V8