Hi! This will likely be due to network congestion. First, try setting Configuration to "Arbitrated (Experimental)" if it is not already (under the Team Render tab of the Corona section of the Render Settings). If that alone doesn't resolve, increase the Client Update Interval and the Maximum Size of Packet, something like 30 seconds, and 128Mb for example, though you may need to experiment with this and increase them even more, particularly the packet size. The trick is not to send too many packets too quickly which will lead to network congestion, but also not to send packets that are too small (especially for larger resolutions, if the packet size is too small, TR may be slower than a single machine, as the main machine is only receiving a small amount of data at once).