diff --git a/library/axi_mc_speed/axi_mc_speed_constr.xdc b/library/axi_mc_speed/axi_mc_speed_constr.xdc
index 2b3f068c5..8b1378917 100644
--- a/library/axi_mc_speed/axi_mc_speed_constr.xdc
+++ b/library/axi_mc_speed/axi_mc_speed_constr.xdc
@@ -1,44 +1 @@
-set up_clk [get_clocks -of_objects [get_ports s_axi_aclk]]
-set speed_clk [get_clocks -of_objects [get_ports ref_clk]]
 
-set_property ASYNC_REG TRUE \
-  [get_cells -hier *toggle_m1_reg*] \
-  [get_cells -hier *toggle_m2_reg*] \
-  [get_cells -hier *state_m1_reg*] \
-  [get_cells -hier *state_m2_reg*]
-
-set_false_path \
-  -from [get_cells -hier up_xfer_toggle_reg* -filter {primitive_subgroup == flop}] \
-  -to [get_cells -hier d_xfer_toggle_m1_reg* -filter {primitive_subgroup == flop}]
-set_false_path \
-  -from [get_cells -hier d_xfer_toggle_reg* -filter {primitive_subgroup == flop}] \
-  -to [get_cells -hier up_xfer_state_m1_reg* -filter {primitive_subgroup == flop}]
-set_max_delay -datapath_only \
-  -from [get_cells -hier up_xfer_data_reg* -filter {primitive_subgroup == flop}] \
-  -to [get_cells -hier d_data_cntrl_reg* -filter {primitive_subgroup == flop}] \
-  [get_property PERIOD $speed_clk]
-
-set_false_path \
-  -from [get_cells -hier d_xfer_toggle_reg* -filter {primitive_subgroup == flop}] \
-  -to [get_cells -hier up_xfer_toggle_m1_reg* -filter {primitive_subgroup == flop}]
-set_false_path \
-  -from [get_cells -hier up_xfer_toggle_reg* -filter {primitive_subgroup == flop}] \
-  -to [get_cells -hier d_xfer_state_m1_reg* -filter {primitive_subgroup == flop}]
-set_max_delay -datapath_only \
-  -from [get_cells -hier d_xfer_data_reg* -filter {primitive_subgroup == flop}] \
-  -to [get_cells -hier up_data_status_reg* -filter {primitive_subgroup == flop}] \
-  [get_property PERIOD $up_clk]
-
-set_false_path \
-  -from [get_cells -hier up_count_toggle_reg* -filter {primitive_subgroup == flop}] \
-  -to [get_cells -hier d_count_toggle_m1_reg* -filter {primitive_subgroup == flop}]
-set_false_path \
-  -from [get_cells -hier d_count_toggle_reg* -filter {primitive_subgroup == flop}] \
-  -to [get_cells -hier up_count_toggle_m1_reg* -filter {primitive_subgroup == flop}]
-set_max_delay -datapath_only \
-  -from [get_cells -hier d_count_hold_reg* -filter {primitive_subgroup == flop}] \
-  -to [get_cells -hier up_d_count_reg* -filter {primitive_subgroup == flop}] \
-  [get_property PERIOD $up_clk]
-
-set_false_path \
-  -to [get_pins -hier */PRE -filter {NAME =~ *i_*rst_reg*}]