diff --git a/src/osmo_gsm_tester/templates/srsue.conf.tmpl b/src/osmo_gsm_tester/templates/srsue.conf.tmpl
index a50f91e..0939823 100644
--- a/src/osmo_gsm_tester/templates/srsue.conf.tmpl
+++ b/src/osmo_gsm_tester/templates/srsue.conf.tmpl
@@ -336,7 +336,9 @@
 #snr_ema_coeff       = 0.1
 #snr_estim_alg       = refs
 #pdsch_max_its       = 8    # These are half iterations
-#nof_phy_threads     = 3
+% if ue.rf_dev_type == 'zmq':
+nof_phy_threads     = 2
+% endif
 #equalizer_mode      = mmse
 #sfo_ema             = 0.1
 #sfo_correct_period  = 10