I changed /usr/share/kodi/system/peripherals.xml
<setting key="double_tap_timeout_ms" type="int" min="50" max="1500" step="50" value="300" label="38050" order="16" />
<setting key="button_repeat_rate_ms" type="int" min="0" max="1250" step="10" value="0" label="38051" order="17" />
<setting key="button_release_delay_ms" type="int" min="0" max="500" step="50" value="0" label="38052" order="18" />
now I can make changes that works! woho!
Good settings for our remote is delay 650, repeat 250 and release 0
Thanks