I have two showers one over the bath which is fine, then I have a shower cubicle in my on suite which when it is on hot there is hardly any pressure? When I turn it to cold water there is plenty of pressure why is this and can it be recified?

I have two showers one over the bath which is fine, then I have a shower cubicle in my on suite which when it is on hot there is hardly any pressure? when I turn it to cold water there is plenty of pressure why is this and can it be recified?

Shut the water off to the shower valve and pull the cartridge, Check and clean the inlet ports, Now turn the water back on for a minute to flush out the supplies. Reassemble and test, Better now? Let me know, Tom