diff --git a/fpga/scripts/synth_and_impl.tcl b/fpga/scripts/synth_and_impl.tcl
index f159d4a00..5c97edb63 100644
--- a/fpga/scripts/synth_and_impl.tcl
+++ b/fpga/scripts/synth_and_impl.tcl
@@ -60,9 +60,9 @@ set WNSPLACE [ get_property SLACK [get_timing_paths -max_paths 1 -nworst 1 -setu
 puts "    ***** Place WNS: $WNSPLACE ps *****"
 write_checkpoint -force jungfraujoch_place.dcp
 
-if {$WNSPLACE > -1.000} {
+if {$WNSPLACE > -0.3000} {
     puts "Route design..."
-    route_design -directive Explore -tns_cleanup -ultrathreads > route_design.log
+    route_design -directive AggressiveExplore -tns_cleanup -ultrathreads > route_design.log
     set WNSROUTE [ get_property SLACK [get_timing_paths -max_paths 1 -nworst 1 -setup] ]
     puts "Route WNS (before optimization): $WNSROUTE ps"