Yes but before that try to change the color space in advance settings, try RGB and ycbcr and test it, with my TV I prefer ycbcr. Also check in the menus of your TV if can change the type of device that's connect to the hdmi.
Settings in Kodi are irrelevant to Himedia player, it's a external software to Kodi. There are settings in Himedia player you can change but it's really personal taste.
I don't understand what you mean with video rumors. How's the picture quality in general, home screen, YouTube etc?