diff --git a/apps/sim/lib/execution/isolated-vm.ts b/apps/sim/lib/execution/isolated-vm.ts
index 1ac2ef1ee..52d67563a 100644
--- a/apps/sim/lib/execution/isolated-vm.ts
+++ b/apps/sim/lib/execution/isolated-vm.ts
@@ -52,25 +52,23 @@ export interface IsolatedVMError {
   lineContent?: string
 }
 
-const POOL_SIZE = Number.parseInt(env.IVM_POOL_SIZE) || 4
-const MAX_CONCURRENT = Number.parseInt(env.IVM_MAX_CONCURRENT) || 10000
-const MAX_PER_WORKER = Number.parseInt(env.IVM_MAX_PER_WORKER) || 2500
-const WORKER_IDLE_TIMEOUT_MS = Number.parseInt(env.IVM_WORKER_IDLE_TIMEOUT_MS) || 60000
-const QUEUE_TIMEOUT_MS = Number.parseInt(env.IVM_QUEUE_TIMEOUT_MS) || 300000
-const MAX_QUEUE_SIZE = Number.parseInt(env.IVM_MAX_QUEUE_SIZE) || 10000
-const MAX_FETCH_RESPONSE_BYTES =
-  Number.parseInt(env.IVM_MAX_FETCH_RESPONSE_BYTES) || 8 * 1024 * 1024
-const MAX_FETCH_RESPONSE_CHARS = Number.parseInt(env.IVM_MAX_FETCH_RESPONSE_CHARS) || 4_000_000
-const MAX_FETCH_URL_LENGTH = Number.parseInt(env.IVM_MAX_FETCH_URL_LENGTH) || 8192
-const MAX_FETCH_OPTIONS_JSON_CHARS =
-  Number.parseInt(env.IVM_MAX_FETCH_OPTIONS_JSON_CHARS) || 256 * 1024
-const MAX_ACTIVE_PER_OWNER = Number.parseInt(env.IVM_MAX_ACTIVE_PER_OWNER) || 200
-const MAX_QUEUED_PER_OWNER = Number.parseInt(env.IVM_MAX_QUEUED_PER_OWNER) || 2000
-const MAX_OWNER_WEIGHT = Number.parseInt(env.IVM_MAX_OWNER_WEIGHT) || 5
-const DISTRIBUTED_MAX_INFLIGHT_PER_OWNER =
-  Number.parseInt(env.IVM_DISTRIBUTED_MAX_INFLIGHT_PER_OWNER) ||
-  MAX_ACTIVE_PER_OWNER + MAX_QUEUED_PER_OWNER
-const DISTRIBUTED_LEASE_MIN_TTL_MS = Number.parseInt(env.IVM_DISTRIBUTED_LEASE_MIN_TTL_MS) || 120000
+const POOL_SIZE = Number.parseInt(env.IVM_POOL_SIZE)
+const MAX_CONCURRENT = Number.parseInt(env.IVM_MAX_CONCURRENT)
+const MAX_PER_WORKER = Number.parseInt(env.IVM_MAX_PER_WORKER)
+const WORKER_IDLE_TIMEOUT_MS = Number.parseInt(env.IVM_WORKER_IDLE_TIMEOUT_MS)
+const QUEUE_TIMEOUT_MS = Number.parseInt(env.IVM_QUEUE_TIMEOUT_MS)
+const MAX_QUEUE_SIZE = Number.parseInt(env.IVM_MAX_QUEUE_SIZE)
+const MAX_FETCH_RESPONSE_BYTES = Number.parseInt(env.IVM_MAX_FETCH_RESPONSE_BYTES)
+const MAX_FETCH_RESPONSE_CHARS = Number.parseInt(env.IVM_MAX_FETCH_RESPONSE_CHARS)
+const MAX_FETCH_URL_LENGTH = Number.parseInt(env.IVM_MAX_FETCH_URL_LENGTH)
+const MAX_FETCH_OPTIONS_JSON_CHARS = Number.parseInt(env.IVM_MAX_FETCH_OPTIONS_JSON_CHARS)
+const MAX_ACTIVE_PER_OWNER = Number.parseInt(env.IVM_MAX_ACTIVE_PER_OWNER)
+const MAX_QUEUED_PER_OWNER = Number.parseInt(env.IVM_MAX_QUEUED_PER_OWNER)
+const MAX_OWNER_WEIGHT = Number.parseInt(env.IVM_MAX_OWNER_WEIGHT)
+const DISTRIBUTED_MAX_INFLIGHT_PER_OWNER = Number.parseInt(
+  env.IVM_DISTRIBUTED_MAX_INFLIGHT_PER_OWNER
+)
+const DISTRIBUTED_LEASE_MIN_TTL_MS = Number.parseInt(env.IVM_DISTRIBUTED_LEASE_MIN_TTL_MS)
 const DISTRIBUTED_KEY_PREFIX = 'ivm:fair:v1:owner'
 const QUEUE_RETRY_DELAY_MS = 1000
 const DISTRIBUTED_LEASE_GRACE_MS = 30000