diff --git a/Foil/AppDelegate.swift b/Foil/AppDelegate.swift
index f12dd62..098d342 100644
--- a/Foil/AppDelegate.swift
+++ b/Foil/AppDelegate.swift
@@ -10,9 +10,6 @@ import Cocoa
 
 @NSApplicationMain
 class AppDelegate: NSObject, NSApplicationDelegate {
-
-
-
     func applicationDidFinishLaunching(_ aNotification: Notification) {
         // Insert code here to initialize your application
     }
diff --git a/Foil/Base.lproj/Main.storyboard b/Foil/Base.lproj/Main.storyboard
index fb54775..e8441c6 100644
--- a/Foil/Base.lproj/Main.storyboard
+++ b/Foil/Base.lproj/Main.storyboard
@@ -11,11 +11,11 @@
                 <application id="hnw-xV-0zn" sceneMemberID="viewController">
                     <menu key="mainMenu" title="Main Menu" systemMenu="main" id="AYu-sK-qS6">
                         <items>
-                            <menuItem title="DeviceFallbackForCompute" id="1Xt-HY-uBw">
+                            <menuItem title="Foil" id="1Xt-HY-uBw">
                                 <modifierMask key="keyEquivalentModifierMask"/>
-                                <menu key="submenu" title="DeviceFallbackForCompute" systemMenu="apple" id="uQy-DD-JDr">
+                                <menu key="submenu" title="Foil" systemMenu="apple" id="uQy-DD-JDr">
                                     <items>
-                                        <menuItem title="About DeviceFallbackForCompute" id="5kV-Vb-QxS">
+                                        <menuItem title="About Foil" id="5kV-Vb-QxS">
                                             <modifierMask key="keyEquivalentModifierMask"/>
                                             <connections>
                                                 <action selector="orderFrontStandardAboutPanel:" target="Ady-hI-5gd" id="Exp-CZ-Vem"/>
@@ -29,7 +29,7 @@
                                             <menu key="submenu" title="Services" systemMenu="services" id="hz9-B4-Xy5"/>
                                         </menuItem>
                                         <menuItem isSeparatorItem="YES" id="4je-JR-u6R"/>
-                                        <menuItem title="Hide DeviceFallbackForCompute" keyEquivalent="h" id="Olw-nP-bQN">
+                                        <menuItem title="Hide Foil" keyEquivalent="h" id="Olw-nP-bQN">
                                             <connections>
                                                 <action selector="hide:" target="Ady-hI-5gd" id="PnN-Uc-m68"/>
                                             </connections>
@@ -47,7 +47,7 @@
                                             </connections>
                                         </menuItem>
                                         <menuItem isSeparatorItem="YES" id="kCx-OE-vgT"/>
-                                        <menuItem title="Quit DeviceFallbackForCompute" keyEquivalent="q" id="4sb-4s-VLi">
+                                        <menuItem title="Quit Foil" keyEquivalent="q" id="4sb-4s-VLi">
                                             <connections>
                                                 <action selector="terminate:" target="Ady-hI-5gd" id="Te7-pn-YzF"/>
                                             </connections>
@@ -640,7 +640,7 @@
                                 <modifierMask key="keyEquivalentModifierMask"/>
                                 <menu key="submenu" title="Help" systemMenu="help" id="F2S-fz-NVQ">
                                     <items>
-                                        <menuItem title="DeviceFallbackForCompute Help" keyEquivalent="?" id="FKE-Sm-Kum">
+                                        <menuItem title="Foil Help" keyEquivalent="?" id="FKE-Sm-Kum">
                                             <connections>
                                                 <action selector="showHelp:" target="Ady-hI-5gd" id="y7X-2Q-9no"/>
                                             </connections>
@@ -659,7 +659,7 @@
         <scene sceneID="R2V-B0-nI4">
             <objects>
                 <windowController id="B8D-0N-5wS" sceneMemberID="viewController">
-                    <window key="window" title="DeviceFallbackForCompute" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" releasedWhenClosed="NO" animationBehavior="default" id="IQv-IB-iLA">
+                    <window key="window" title="Foil" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" releasedWhenClosed="NO" animationBehavior="default" id="IQv-IB-iLA">
                         <windowStyleMask key="styleMask" titled="YES" closable="YES" miniaturizable="YES" resizable="YES"/>
                         <windowPositionMask key="initialPositionMask" leftStrut="YES" rightStrut="YES" topStrut="YES" bottomStrut="YES"/>
                         <rect key="contentRect" x="196" y="240" width="480" height="270"/>
diff --git a/Foil/FoilViewController.swift b/Foil/FoilViewController.swift
index 8e8f755..15670ea 100644
--- a/Foil/FoilViewController.swift
+++ b/Foil/FoilViewController.swift
@@ -36,7 +36,8 @@ class FoilViewController: NSViewController, MTKViewDelegate {
 
     static let FoilNumSimulationConfigs = FoilSimulationConfigTable.count
 
-    var _view: MTKView { guard let v = self.view as? MTKView else { fatalError() }; return v }
+//    var _view: MTKView { guard let v = self.view as? MTKView else { fatalError() }; return v }
+    var _view: MTKView { (self.view as? MTKView)! }
     var renderer: FoilRenderer!
     var simulation: FoilSimulation!
 
diff --git a/Simulation/FoilSimulation.swift b/Simulation/FoilSimulation.swift
index af1b88a..a87473c 100644
--- a/Simulation/FoilSimulation.swift
+++ b/Simulation/FoilSimulation.swift
@@ -69,6 +69,11 @@ class FoilSimulation {
 
     let config: FoilSimulationConfig
 
+    let simulationDispatchQueue = DispatchQueue(
+        label: "simulator.q", qos: .default, attributes: [/*serial*/],
+        target: DispatchQueue.global(qos: .default)
+    )
+
     // When set to true, stop an asynchronously executed simulation
     var halt = false
 
@@ -112,7 +117,7 @@ class FoilSimulation {
     func runAsyncWithUpdateHandler(
         updateHandler: @escaping FoilDataUpdateHandler, dataProvider: @escaping FoilFullDatasetProvider
     ) {
-        DispatchQueue.global(qos: .default).async {
+        simulationDispatchQueue.async {
             self.commandQueue = self.device.makeCommandQueue()
 
             self.runAsyncLoopWithUpdateHandler(updateHandler: updateHandler)