diff --git a/imports/waitFor/shared.lua b/imports/waitFor/shared.lua
index 0da28960..2492adcb 100644
--- a/imports/waitFor/shared.lua
+++ b/imports/waitFor/shared.lua
@@ -10,31 +10,21 @@ function lib.waitFor(cb, errMessage, timeout)
 
     if value ~= nil then return value end
 
-
     if timeout or timeout == nil then
         if type(timeout) ~= 'number' then timeout = 1000 end
-
-        if IsDuplicityVersion() then
-            timeout /= 50;
-        else
-            timeout -= GetFrameTime() * 1000;
-        end
     end
 
-
-    local start = GetGameTimer()
-    local i = 0
+    local start = timeout and GetGameTimer()
 
     while value == nil do
-        if timeout then
-            i += 1
+        Wait(0)
+
+        local elapsed = timeout and GetGameTimer() - start
 
-            if i > timeout then
-                return error(('%s (waited %.1fms)'):format(errMessage or 'failed to resolve callback', (GetGameTimer() - start) / 1000), 2)
-            end
+        if elapsed and elapsed > timeout then
+            return error(('%s (waited %.1fms)'):format(errMessage or 'failed to resolve callback', elapsed), 2)
         end
 
-        Wait(0)
         value = cb()
     end
 
diff --git a/package/shared/index.ts b/package/shared/index.ts
index a9e319dd..92597cb8 100644
--- a/package/shared/index.ts
+++ b/package/shared/index.ts
@@ -93,7 +93,7 @@ export interface VehicleProperties {
   modLightbar: number;
   windows: number[];
   doors: number[];
-  tyres: Record<number | string, 1 | 2>
+  tyres: Record<number | string, 1 | 2>;
   leftHeadlight: boolean;
   rightHeadlight: boolean;
   frontBumper: boolean;
@@ -113,22 +113,17 @@ export async function waitFor<T>(cb: () => T, errMessage?: string, timeout?: num
 
   if (timeout || timeout == null) {
     if (typeof timeout !== 'number') timeout = 1000;
-
-    if (IsDuplicityVersion()) timeout /= 50;
-    else timeout -= GetFrameTime() * 1000;
   }
 
   const start = GetGameTimer();
   let id: number;
-  let i = 0;
 
   const p = new Promise<T>((resolve, reject) => {
     id = setTick(async () => {
-      if (timeout) {
-        i++;
+      const elapsed = timeout && GetGameTimer() - start;
 
-        if (i > timeout)
-          return reject(`${errMessage || 'failed to resolve callback'} (waited ${(GetGameTimer() - start) / 1000}ms)`);
+      if (elapsed && elapsed > (timeout as number)) {
+        return reject(`${errMessage || 'failed to resolve callback'} (waited ${elapsed}ms)`);
       }
 
       value = await cb();