Performance problem in ini_manage module

Try to edit default php.ini in CentOS 7 and see strange delay in test mode - 37 seconds with 99% CPU consumption by salt-minion. In real work mode job finishes fast enough - just 7 seconds. But, as for me, 7 seconds is too much too. Tried to remove all empty lines and comments (1626 lines were deleted) - result became 176.434 ms in test mode. Is there any possibility to improve ini_manage module performance ?
I use the latest version - 2016.11.0 (both master and minion).

P.S. In previous release (2016.3.4) test mode lasted 158 seconds, it was awesome.

php-ini.sls:

php-ini:
  ini.options_present:
    - name: /etc/php.ini
    - sections:
        PHP:
          short_open_tag:                      On
          expose_php:                          Off
          max_execution_time:                  30
          memory_limit:                        700M
          error_reporting:                     E_ALL & ~E_DEPRECATED & ~E_STRICT & ~E_NOTICE
          display_errors:                      Off
          log_errors:                          On
          post_max_size:                       8M
          cgi.fix_pathinfo:                    0
          fastcgi.logging:                     1
          upload_max_filesize:                 2M
          allow_url_fopen:                     On
          allow_url_include:                   Off
        Date:
          date.timezone:                       Europe/Kiev
        mail function:
          mail.add_x_header:                   Off
        Session:
          session.use_strict_mode:             1
          session.gc_probability:              1
          session.gc_divisor:                  100
        opcache:
          opcache.enable:                      0
          opcache.enable_cli:                  0

Test mode command:

# time salt --state-verbose=true --state-output=full 'minion' state.sls php-ini test=true
minion:
----------
          ID: php-ini
    Function: ini.options_present
        Name: /etc/php.ini
      Result: None
     Comment: Key short_open_tag in section PHP unchanged.
              Key expose_php in section PHP unchanged.
              Key max_execution_time in section PHP unchanged.
              Key memory_limit in section PHP unchanged.
              Key error_reporting in section PHP unchanged.
              Key display_errors in section PHP unchanged.
              Key log_errors in section PHP unchanged.
              Key post_max_size in section PHP unchanged.
              Key cgi.fix_pathinfo in section PHP unchanged.
              Key fastcgi.logging in section PHP unchanged.
              Key upload_max_filesize in section PHP unchanged.
              Key allow_url_fopen in section PHP unchanged.
              Key allow_url_include in section PHP unchanged.
              Changed key date.timezone in section Date.
              Key mail.add_x_header in section mail function unchanged.
              Key session.use_strict_mode in section Session unchanged.
              Key session.gc_probability in section Session unchanged.
              Key session.gc_divisor in section Session unchanged.
              Key opcache.enable in section opcache unchanged.
              Key opcache.enable_cli in section opcache unchanged.
     Started: 13:41:24.908048
    Duration: 36837.488 ms
     Changes:   

Summary for minion
------------
Succeeded: 1 (unchanged=1)
Failed:    0
------------
Total states run:     1
Total run time:  36.837 s

real    0m40.082s
user    0m1.341s
sys     0m0.201s

Editing mode:

# time salt --state-verbose=true --state-output=full 'minion' state.sls php-ini
minion:
----------
          ID: php-ini
    Function: ini.options_present
        Name: /etc/php.ini
      Result: True
     Comment: Changes take effect
     Started: 13:51:26.311462
    Duration: 7648.754 ms
     Changes:   
              ----------
              Date:
                  ----------
                  date.timezone:
                      ----------
                      after:
                          Europe/Kiev
                      before:
                          None

Summary for minion
------------
Succeeded: 1 (changed=1)
Failed:    0
------------
Total states run:     1
Total run time:   7.649 s

real    0m11.664s
user    0m0.922s
sys     0m0.150s