Kliovance is conti HRT. It's usually the progestogen that causes women to feel bloated due to water retention. IF HRT were to cause a change in metabolism, it's more likely to come by using a conti form where you take 2 hormones daily, rather than sequi.
Unless you have a really strong reason to use conti rather than sequi, you might find a difference by changing to a sequi form.
Logically, HRT should make it easier to lose or maintain weight. This is because it's 'tricking' our bodies into the pre-meno stage we were in when we were fertile. It's overriding the change (partly but not wholly) that comes with middle age and a slower metabolism.
I don't see how patches would be any different, in fact the reverse ought to be true. With pill form HRT a lot of the active ingredients are lost during digestion - that's why pills are a higher dose often to allow for loss during digestion. With patches, the hormones get straight into your system with going through first bypassing the liver.
I'd be tempted to say try cutting out all carbs except for 30mgs of wholefood carbs a day, eating only fruit, veg, lean meat and fish, small amount of dairy, no sugar, no puddings, or refined cereals. no booze, and see how your weight is in a month.