diff --git a/ci-scripts/xml_files/container_4g_rfsim.xml b/ci-scripts/xml_files/container_4g_rfsim.xml
index f342c3f5ce..5f3e5320af 100644
--- a/ci-scripts/xml_files/container_4g_rfsim.xml
+++ b/ci-scripts/xml_files/container_4g_rfsim.xml
@@ -109,7 +109,7 @@
                 <server_container_name>rfsim4g-oai-lte-ue0</server_container_name>
                 <client_container_name>rfsim4g-trf-gen</client_container_name>
                 <server_options>-B 12.0.0.2 -u -i 1 -s</server_options>
-                <client_options>-c 12.0.0.2 -u -i 1 -t 30 -b 4M</client_options>
+                <client_options>-c 12.0.0.2 -u -i 1 -t 30 -b 2M</client_options>
         </testCase>
 
         <testCase id="030012">
@@ -118,7 +118,7 @@
                 <server_container_name>rfsim4g-trf-gen</server_container_name>
                 <client_container_name>rfsim4g-oai-lte-ue0</client_container_name>
                 <server_options>-u -i 1 -s</server_options>
-                <client_options>-B 12.0.0.2 -c 192.168.61.11 -u -i 1 -t 30 -b 2M</client_options>
+                <client_options>-B 12.0.0.2 -c 192.168.61.11 -u -i 1 -t 30 -b 1M</client_options>
         </testCase>
 
         <testCase id="100011">
diff --git a/docker/Dockerfile.lteUE.rhel8.2 b/docker/Dockerfile.lteUE.rhel8.2
index 2d540876e3..936780297a 100644
--- a/docker/Dockerfile.lteUE.rhel8.2
+++ b/docker/Dockerfile.lteUE.rhel8.2
@@ -37,9 +37,7 @@ RUN /bin/sh oaienv && \
     mkdir -p log && \
     ./build_oai --UE --ninja -w USRP --verbose-ci
 
-RUN yum install -y python3-pip && \
-    pip3 install --ignore-installed pyyaml && \
-    python3 ./docker/scripts/generateTemplate.py ./docker/scripts/lte_ue_parameters.yaml && \
+RUN python3 ./docker/scripts/generateTemplate.py ./docker/scripts/lte_ue_parameters.yaml && \
     python3 ./docker/scripts/generateTemplate.py ./docker/scripts/lte_ue_sim_parameters.yaml
 
 #start from scratch for target executable
diff --git a/docker/Dockerfile.lteUE.ubuntu18 b/docker/Dockerfile.lteUE.ubuntu18
index c6a70a0b50..34cbe651ad 100644
--- a/docker/Dockerfile.lteUE.ubuntu18
+++ b/docker/Dockerfile.lteUE.ubuntu18
@@ -37,9 +37,7 @@ RUN /bin/sh oaienv && \
     mkdir -p log && \
     ./build_oai --UE --ninja -w USRP --verbose-ci
 
-RUN apt-get install -y python3-pip && \
-    pip3 install --ignore-installed pyyaml && \
-    python3 ./docker/scripts/generateTemplate.py ./docker/scripts/lte_ue_parameters.yaml && \
+RUN python3 ./docker/scripts/generateTemplate.py ./docker/scripts/lte_ue_parameters.yaml && \
     python3 ./docker/scripts/generateTemplate.py ./docker/scripts/lte_ue_sim_parameters.yaml
 
 #start from scratch for target executable
diff --git a/docker/scripts/enb_entrypoint.sh b/docker/scripts/enb_entrypoint.sh
index 4ac86ef1b7..2e8886e855 100755
--- a/docker/scripts/enb_entrypoint.sh
+++ b/docker/scripts/enb_entrypoint.sh
@@ -6,6 +6,7 @@ PREFIX=/opt/oai-enb
 RRC_INACTIVITY_THRESHOLD=${RRC_INACTIVITY_THRESHOLD:-0}
 ENABLE_MEASUREMENT_REPORTS=${ENABLE_MEASUREMENT_REPORTS:-no}
 ENABLE_X2=${ENABLE_X2:-no}
+THREAD_PARALLEL_CONFIG=${THREAD_PARALLEL_CONFIG:-PARALLEL_SINGLE_THREAD}
 
 # Based another env var, pick one template to use
 if [[ -v USE_FDD_CU ]]; then ln -s $PREFIX/etc/cu.fdd.conf $PREFIX/etc/enb.conf; fi
diff --git a/docker/scripts/enb_parameters.yaml b/docker/scripts/enb_parameters.yaml
index 58715a7152..07bba4479b 100644
--- a/docker/scripts/enb_parameters.yaml
+++ b/docker/scripts/enb_parameters.yaml
@@ -98,6 +98,8 @@
       env: "@NID_CELL@"
     - key: N_RB_DL
       env: "@NB_PRB@"
+    - key: parallel_config
+      env: "@THREAD_PARALLEL_CONFIG@"
       
   - filePrefix: rru.fdd
     outputfilename: "rru.fdd.conf"
@@ -110,6 +112,8 @@
       env: "@RRU_LOCAL_IP_ADDRESS@"
     - key: bands
       env: "@UTRA_BAND_ID@"
+    - key: parallel_config
+      env: "@THREAD_PARALLEL_CONFIG@"
       
   - filePrefix: rru.tdd
     outputfilename: "rru.tdd.conf"
@@ -122,6 +126,8 @@
       env: "@RRU_LOCAL_IP_ADDRESS@"
     - key: bands
       env: "@UTRA_BAND_ID@"
+    - key: parallel_config
+      env: "@THREAD_PARALLEL_CONFIG@"
       
   - filePrefix: enb.band7.tm1.fr1.25PRB.usrpb210.conf
     outputfilename: "enb.fdd.conf"
@@ -171,6 +177,8 @@
       env: "@FLEXRAN_INTERFACE_NAME@"
     - key: FLEXRAN_IPV4_ADDRESS
       env: "@FLEXRAN_IPV4_ADDRESS@"
+    - key: parallel_config
+      env: "@THREAD_PARALLEL_CONFIG@"
       
   - filePrefix: enb.band40.tm1.25PRB.FairScheduler.usrpb210
     outputfilename: "enb.tdd.conf"
@@ -208,6 +216,8 @@
       env: "@F1_CU_IP_ADDRESS@"
     - key: ENB_IPV4_ADDRESS_FOR_X2C
       env: "@F1_CU_IP_ADDRESS@"
+    - key: parallel_config
+      env: "@THREAD_PARALLEL_CONFIG@"
       
   - filePrefix: "rcc.band7.tm1.nfapi"
     outputfilename: "rcc.nfapi.fdd.conf"
@@ -251,6 +261,8 @@
       env: "@F1_CU_IP_ADDRESS@"
     - key: ENB_IPV4_ADDRESS_FOR_X2C
       env: "@F1_CU_IP_ADDRESS@"
+    - key: parallel_config
+      env: "@THREAD_PARALLEL_CONFIG@"
 
   - filePrefix: "rcc.band7.tm1.if4p5.lo.25PRB"
     outputfilename: "rcc.if4p5.fdd.conf"
@@ -294,6 +306,8 @@
       env: "@IF4P5_RRU_IP_ADDRESS@"
     - key: local_address
       env: "@IF4P5_RCC_IP_ADDRESS@"
+    - key: parallel_config
+      env: "@THREAD_PARALLEL_CONFIG@"
 
   - filePrefix: "rcc.band40.tm1.25PRB"
     outputfilename: "rcc.if4p5.tdd.conf"
@@ -337,4 +351,6 @@
       env: "@IF4P5_RRU_IP_ADDRESS@"
     - key: local_address
       env: "@IF4P5_RCC_IP_ADDRESS@"
+    - key: parallel_config
+      env: "@THREAD_PARALLEL_CONFIG@"
 
diff --git a/docker/scripts/gnb_entrypoint.sh b/docker/scripts/gnb_entrypoint.sh
index 6d3d63629f..678ec6cb1b 100755
--- a/docker/scripts/gnb_entrypoint.sh
+++ b/docker/scripts/gnb_entrypoint.sh
@@ -4,6 +4,7 @@ set -euo pipefail
 
 PREFIX=/opt/oai-gnb
 ENABLE_X2=${ENABLE_X2:-yes}
+THREAD_PARALLEL_CONFIG=${THREAD_PARALLEL_CONFIG:-PARALLEL_SINGLE_THREAD}
 
 # Based another env var, pick one template to use
 if [[ -v USE_NSA_TDD_MONO ]]; then ln -s $PREFIX/etc/gnb.nsa.tdd.conf $PREFIX/etc/gnb.conf; fi
diff --git a/docker/scripts/gnb_parameters.yaml b/docker/scripts/gnb_parameters.yaml
index a13d0d3677..ac5a6cb971 100644
--- a/docker/scripts/gnb_parameters.yaml
+++ b/docker/scripts/gnb_parameters.yaml
@@ -61,6 +61,8 @@
       env: "@FLEXRAN_INTERFACE_NAME@"
     - key: FLEXRAN_IPV4_ADDRESS
       env: "@FLEXRAN_IPV4_ADDRESS@"
+    - key: parallel_config
+      env: "@THREAD_PARALLEL_CONFIG@"
 
   - filePrefix: gnb.band78.sa.fr1.106PRB.usrpn310.conf
     outputfilename: "gnb.sa.tdd.conf"
@@ -89,4 +91,6 @@
       env: "@GNB_NGU_IF_NAME@"
     - key: GNB_IPV4_ADDRESS_FOR_NGU
       env: "@GNB_NGU_IP_ADDRESS@"
+    - key: parallel_config
+      env: "@THREAD_PARALLEL_CONFIG@"