While bandwidth affects your network speed, latency is usually the cause of lag or buffering. With higher bandwidth, download speed is increased and latency becomes more noticeable.

Does network bandwidth affect latency?

The lower your bandwidth, the more time it will take for data packets to reach their destination, which can lead to higher latency. Similarly, the higher bandwidth, the quicker your packets will travel, which can result in lower latency.

Can bandwidth decrease ping?

In the strict sense, a "faster" connection (in the way you're referring to it) will not reduce latency. So will a higher bandwidth connection lower the ping response time? if not: is there any way I can get a better response time? No it won't.