diff --git a/core-buffer/src/UdpRecvModule.cpp b/core-buffer/src/UdpRecvModule.cpp
index a1b76ae..f811c9d 100644
--- a/core-buffer/src/UdpRecvModule.cpp
+++ b/core-buffer/src/UdpRecvModule.cpp
@@ -66,7 +66,7 @@ void UdpRecvModule::receive_thread(const uint16_t udp_port)
 
         pid_t tid;
         tid = syscall(SYS_gettid);
-        int ret = setpriority(PRIO_PROCESS, tid, -10);
+        int ret = setpriority(PRIO_PROCESS, tid, -20);
         if (ret == -1) throw runtime_error("cannot set nice");
 
         UdpReceiver udp_receiver;