Tune your computing environment to improve performance:
Turn off antivirus and firewall software.
Turn off all nonessential background processes on your computer.
Disable all but IP4 in your network stack.
The following suggestions may also improve performance or reduce data loss:
If you have a B-series radio, make sure that you use a USB 3 connection.
See the recommended USB 3.0 controllers from Ettus Research™: https://kb.ettus.com/About_USRP_Bandwidths_and_Sampling_Rates.
With laptops, try connecting the laptop to a power supply. Most laptops are configured for better battery life when they are not connected to a power supply. This affects the performance negatively. For both battery mode and AC power supply mode, make sure you have a power setting corresponding to maximum performance. Some laptop manufacturers might also provide advanced power settings to help chose a plan for maximum CPU performance.