revert making validator set smaller

internal/consensus/reactor_test.go

@@ -712,8 +712,8 @@ func TestReactorValidatorSetChanges(t *testing.T) {
 
 	cfg := configSetup(t)
 
-	nPeers := 4
-	nVals := 1
+	nPeers := 7
+	nVals := 4
 	states, _, _, cleanup := randConsensusNetWithPeers(
 		ctx,
 		t,
@@ -726,7 +726,7 @@ func TestReactorValidatorSetChanges(t *testing.T) {
 	)
 	t.Cleanup(cleanup)
 
-	rts := setup(ctx, t, nPeers, states, 1000) // buffer must be large enough to not deadlock
+	rts := setup(ctx, t, nPeers, states, 100) // buffer must be large enough to not deadlock
 
 	for _, reactor := range rts.reactors {
 		state := reactor.state.GetState()

types/params.go

@@ -130,7 +130,7 @@ func DefaultSynchronyParams() SynchronyParams {
 	// https://github.com/tendermint/tendermint/issues/7202
 	return SynchronyParams{
 		Precision:    50 * time.Millisecond,
-		MessageDelay: 3 * time.Second,
+		MessageDelay: 2 * time.Second,
 	}
 }