Dissatisfied with the pressureless small storage tank

Hello forum community

I currently have a 10L under-sink small storage tank (non-pressurized) in my kitchen and am not really happy with the water pressure (or the flow rate). Unfortunately, I am not an expert in this area and therefore have little knowledge of what options there are to achieve a reasonable flow rate. I have read quite a bit about this. Also about pressurized small storage tanks, but also about pressurized small instantaneous water heaters.

What I want to achieve, however, is to have a flow rate as similar as possible to what I have in the bathroom (around 24kW gas boiler with a downstream storage tank). Is that possible? If yes, which system would basically be suitable and would you recommend? (Storage/instantaneous)? I would need a device with a max nominal current of 16A (=circuit breaker) that can replace a 10L under-sink storage tank. Hot water is drawn relatively rarely and then in small amounts.

Can you recommend a device/brand? And what costs should I expect or approximately arise? (I am already aware that I need new fittings, although I have also read that pressurized fittings can be connected pressurized with only one outlet!

I look forward to your answers

Best regards Joe

Forget all those mini instantaneous water heaters. They all have one thing in common: With the available 16A, they don't even deliver a trickle that would be enough for hand washing... You also can't get more flow than from a storage tank with them.

The 5L models I know all have enough flow for a normal faucet. Maybe your storage tank or the pipe is clogged. That can of course be the case...

Oliver