You can do this by reducing the speed to other ports.
In theory you set all other ports to 10Mb and the port you need faster to 100Mb.
The switch should have an aggregate backplane speed to support the total number of ports at a significant bandwidth. This is really the most critical element of switch performance. Total backplane bandwidth and how the switching fabric works.
Actually, a managed switch will permit you to link or aggregate ports so that you can increase total bandwidth to a device. However, that device will have to permit teaming or aggregation also. In the Cisco world, this is called Port Aggregation Protocol PAgP. More information.