Possible problem with a Mira Enthuse shower?

I've just had a Mira Enthuse electric shower installed (9.5kw model) and I'm really disappointed with the water flow from the shower head, I went for the higher kw model as I like a powerful shower, but the performace is really average.

It's been done as part of a full bathroom refit and I've no problem with the cold water pressure in the bath (shower is over the bath and comes from the same feed), we've also had the house rewired, so happy that it's not the wiring that's an issue.

I've read some bits online about removing the flow regulator in the shower and that making the water flow more powerful and I know I could purchase a low pressure shower head, but in all honetsy I don't really want to/see why I should have to do either, does anyone have any experience of this model, have I bought a duffer?

Other than checking the filter there's not a lot you can do, The colder the incoming water, the more the shower will need to slow the flow to heat it, you will prob find it will pick up in summer time

As mikegas says I'm afraid. I don't like electric showers for this very reason, would always advise the customer to have a thermostatic valve and pumped feeds.

With the cold weather the incoming water temperature is lower and will take longer to heat up.