diff --git a/tests/tt_metal/tt_metal/perf_microbenchmark/routing/test_vc_bi_tunnel_2ep.cpp b/tests/tt_metal/tt_metal/perf_microbenchmark/routing/test_vc_bi_tunnel_2ep.cpp
index c25e9f3958c4..1b070ed6638b 100644
--- a/tests/tt_metal/tt_metal/perf_microbenchmark/routing/test_vc_bi_tunnel_2ep.cpp
+++ b/tests/tt_metal/tt_metal/perf_microbenchmark/routing/test_vc_bi_tunnel_2ep.cpp
@@ -1137,7 +1137,7 @@ int main(int argc, char **argv) {
                         target_bandwidth = 4.5;
                         log_info(LogTest, "Perf check for pkt size >= 2048 words");
                     } else if (max_packet_size_words >= 1024) {
-                        target_bandwidth = 4.7;
+                        target_bandwidth = 4.3;
                         log_info(LogTest, "Perf check for pkt size >= 1024 words");
                     } else if (max_packet_size_words >= 512) {
                         target_bandwidth = 2.4;
diff --git a/tests/tt_metal/tt_metal/perf_microbenchmark/routing/test_vc_bi_tunnel_4ep.cpp b/tests/tt_metal/tt_metal/perf_microbenchmark/routing/test_vc_bi_tunnel_4ep.cpp
index 74fa54ba26d3..1bd81290eb9a 100644
--- a/tests/tt_metal/tt_metal/perf_microbenchmark/routing/test_vc_bi_tunnel_4ep.cpp
+++ b/tests/tt_metal/tt_metal/perf_microbenchmark/routing/test_vc_bi_tunnel_4ep.cpp
@@ -1251,7 +1251,7 @@ int main(int argc, char **argv) {
                         target_bandwidth = 3.8;
                         log_info(LogTest, "Perf check for pkt size >= 2048 words");
                     } else if (max_packet_size_words >= 1024) {
-                        target_bandwidth = 4.2;
+                        target_bandwidth = 3.9;
                         log_info(LogTest, "Perf check for pkt size >= 1024 words");
                     } else if (max_packet_size_words >= 512) {
                         target_bandwidth = 2;