diff --git a/main.c b/main.c
index 9575484..fc42f57 100644
--- a/main.c
+++ b/main.c
@@ -1,24 +1,26 @@
+#include <stdint.h>
+
+#define SDL_MAIN_USE_CALLBACKS 1
 #include "SDL3/SDL_blendmode.h"
 #include "SDL3/SDL_error.h"
-#include "SDL3/SDL_stdinc.h"
-#include "SDL3/SDL_surface.h"
-#include "mgba/core/config.h"
-#include <stdint.h>
-#define SDL_MAIN_USE_CALLBACKS 1
 #include "SDL3/SDL_init.h"
 #include "SDL3/SDL_log.h"
 #include "SDL3/SDL_main.h"
 #include "SDL3/SDL_pixels.h"
 #include "SDL3/SDL_render.h"
+#include "SDL3/SDL_stdinc.h"
+#include "SDL3/SDL_surface.h"
 #include "SDL3/SDL_timer.h"
 #include "SDL3/SDL_video.h"
 
+#include "mgba/core/config.h"
 #include "mgba/core/core.h"
 #include "mgba/core/interface.h"
 #include "mgba/feature/commandline.h"
 #include "mgba-util/image.h"
 
 #define NUM_CHANNELS 3
+#define FRAMESKIP_LIMIT 20
 
 static SDL_Window* window = NULL;
 static SDL_Renderer* renderer = NULL;
@@ -62,11 +64,7 @@ void myStartRequestImageRed(struct mImageSource* self, unsigned w, unsigned h, i
     SDL_DestroySurface(filtered[0]);
     scaled = SDL_CreateSurface(w, h, SDL_PIXELFORMAT_XBGR1555);
     filtered[0] = SDL_CreateSurface(w, h, SDL_PIXELFORMAT_XBGR1555);
-
     SDL_Log("red: %d x %d", w, h);
-    
-//    SDL_DestroyTexture(texture);
-//    texture = SDL_CreateTextureFromSurface(renderer, scaled);
 }
 
 void myStartRequestImageGreen(struct mImageSource* self, unsigned w, unsigned h, int colorFormats) {
@@ -197,7 +195,7 @@ int SDL_AppInit(int argc, char *argv[]) {
         return -1;
     }
 
-    renderer = SDL_CreateRenderer(window, NULL, 0);
+    renderer = SDL_CreateRenderer(window, NULL, SDL_RENDERER_PRESENTVSYNC);
     if (!renderer) {
         SDL_Log("Couldn't create renderer: %s", SDL_GetError());
         return -1;
@@ -383,6 +381,7 @@ int SDL_AppEvent(const SDL_Event *event) {
 
 int SDL_AppIterate(void) {
     int i;
+    static int since_last_present = 0;
 
     if (scaled != NULL) {
         Uint64 timestampNS = 0;
@@ -420,9 +419,11 @@ int SDL_AppIterate(void) {
         }
     }
 
-    for (i = 0; i < NUM_CHANNELS; i++) {
-        struct mCore* core = cores[i];
-        core->runFrame(core);
+    if (since_last_present < FRAMESKIP_LIMIT) {
+        for (i = 0; i < NUM_CHANNELS; i++) {
+            struct mCore* core = cores[i];
+            core->runFrame(core);
+        }
     }
 
     if (!texture_updated) {
@@ -439,6 +440,18 @@ int SDL_AppIterate(void) {
         }
 
         SDL_RenderPresent(renderer);
+        since_last_present = 0;
+    } else {
+        since_last_present++;
+        if (since_last_present >= FRAMESKIP_LIMIT) {
+          SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
+          SDL_RenderClear(renderer);
+          for (i = 0; i < NUM_CHANNELS; i++) {
+            SDL_Texture *texture = textures[i];
+            SDL_RenderTexture(renderer, texture, NULL, NULL);
+          }
+          SDL_RenderPresent(renderer);
+        }
     }
 
     return 0;  /* keep iterating. */