diff --git a/app.yaml b/app.yaml
index 2c1f5c5..8cb289d 100644
--- a/app.yaml
+++ b/app.yaml
@@ -1,6 +1,6 @@
 # [START app_yaml]
 runtime: nodejs20
-instance_class: F4
+# instance_class: F4
 automatic_scaling:
   max_concurrent_requests: 50
   target_throughput_utilization: 0.85
@@ -13,4 +13,5 @@ automatic_scaling:
 env_variables:
   GCP_PROJECT_ID: "286428615502"
   aws_access_key_id: "AKIAUKSW7EP4G66JAYXE"
+  JCD_IMG_V3_TO_V4: true
 # [EMD app_yaml]
\ No newline at end of file
diff --git a/package.json b/package.json
index 3b1668f..1c2f638 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "description": "",
   "main": ".eslintrc.js",
   "scripts": {
-    "start": "node --optimize_for_size --max_old_space_size=460 index.js",
+    "start": "node --optimize_for_size --max_old_space_size=230 index.js",
     "build": "rm -rf ./dist && tsc",
     "dev": "nodemon -e ts,json,js --watch \"./dist/**/*\" --exec \"npm start\"",
     "db:create": "node dist/db/create-db.js",
diff --git a/src/models/img-sz.ts b/src/models/img-sz.ts
index 87a27fe..f7f3c98 100644
--- a/src/models/img-sz.ts
+++ b/src/models/img-sz.ts
@@ -7,6 +7,7 @@ const ImgSzs = [
   'md',
   'lg',
   'xl',
+  'xxl',
 ] as const;
 export type ImgSz = typeof ImgSzs[number];
 export const DEFAULT_IMG_SZ: ImgSz = 'lg';
@@ -29,16 +30,19 @@ export function imgSzFromDimensions(opts: {
     return DEFAULT_IMG_SZ;
   }
   let dimension = Math.max(opts.width ?? 0, opts.height ?? 0);
-  if(dimension > 1920) {
+  if(dimension > 2100) {
+    return 'xxl';
+  }
+  if(dimension > 1600) {
     return 'xl';
   }
-  if(dimension > 1366) {
+  if(dimension > 1200) {
     return 'lg';
   }
-  if(dimension > 854) {
+  if(dimension > 800) {
     return 'md';
   }
-  if(dimension > 666) {
+  if(dimension > 500) {
     return 'sm';
   }
   return 'xs';