diff --git a/README.md b/README.md
index 58b13fadf1043752b2363daa9e5a198853abafd9..aea0e1cb493a682cf27ad3eb6a0b35dfd7c62646 100644
--- a/README.md
+++ b/README.md
@@ -9,9 +9,7 @@ Checkout the repository and initialize all submodules:
 $ git clone --recursive https://github.com/ThalesGroup/cva6-softcore-contest.git
 ```
 
-> As of October 12th, 2020, we are working hard to solve an alleged performance regression of CVA6 vs. an older versions. You'll be updated when it's solved.
-
- CoreMark application has been customized for the contest, for using CoreMark application, run:
+CoreMark application has been customized for the contest, for using CoreMark application, run:
 
  
 ```
@@ -43,6 +41,8 @@ When the installation is achieved, do not forget to add $RISCV/bin to your PATH.
 Questa Prime **version 10.7** has been used for simulations.
 Other simulation tools and versions can be used but will receive no support from the organization team.
 
+Performances **must** be measured using the Questa simulator.
+
 ## Vitis/Vivado setting up
 This section will be completed in a next release (planned early December 2020).
 For the contest, the CVA6 processor will be implemented on Zybo Z7-20 board from Digilent. This board integrates a Zynq 7000 FPGA from Xilinx.