Reproduction steps:
1) Open "StreamReaderBug2" project
2) Open StreamReaderBug scene
3) Play scene
4) Watch console output

Expected result:
StreamReader should read faster than result which is shown in console.

Actual result:
StringReader is approximately 1427 times slower than StreamReader
StringReader is approximately 2219 times slower than FastStringReader
StringReader is approximately 186 times slower than RegexStringReader

Workaround:
Use StreamReader.