If you remove the aerator (the little screen where the water comes out) by unscrewing it, you may find that it is somewhat plugged with sand, rust, or sediment that can be cleaned out with water and a toothpick. The only other possibility is that the shutoff valves under the sink are not open completely.
Most of the newer kitchen faucets have "flow restrictors" to limit water use.
Low water pressure or cold water main undersized.
You have to undo the aerator at the end of the faucet and clean the screen or plastic water saver out. It will be plugged with sand or sediment.
Some faucets use the water pressure to open the seal after it has been released by the handle. It may be that the seal is tight and slow to move after it has been released. One other thing to check, is your water pressure ok at this faucet.
check for leaks
The water valve under the sink is turned off or has gone bad. It is possible that there is a blockage in the faucet itself. I'd start by ensuring that the water valve is turned off, and take the faucet apart and look for anything out of the ordinary.
The company Kohler is a company in Wisconsin that produces ceramic kitchen sinks as well as many other items. They offer faucets and counter tops as well.
A single handle pull out kitchen faucet offers convenience and versatility compared to other types of kitchen faucets. Its design allows for easy control of water temperature and flow with just one hand, making it efficient for everyday use. The pull-out feature also provides flexibility for washing dishes and filling pots in the sink. Additionally, the sleek and modern look of a single handle pull out faucet can enhance the overall aesthetic of the kitchen.
Waterworks is a major supplier of all water related materials for your home. Includes faucets, pipes, sinks, toilets, as well as other kitchen and bathroom products.
You can purchase brushed nickel faucets from diy, building and other retailers as well as auction sites such as eBay, B&Q, Homebase, Tapoutlet, Tradelines, Lightinthebox, Houzz, Amazon, Victorian Plumbing, William Holland, Moen etc.
Mixer valve
Possibly a pressure reducing valve installed after piping for first faucet, which would cause situation describing.