diff --git a/packages/lib/bookings/filterHostsByLeadThreshold.test.ts b/packages/lib/bookings/filterHostsByLeadThreshold.test.ts
index eae55c09a40a12..f8ca3ceac2531e 100644
--- a/packages/lib/bookings/filterHostsByLeadThreshold.test.ts
+++ b/packages/lib/bookings/filterHostsByLeadThreshold.test.ts
@@ -114,10 +114,8 @@ describe("filterHostByLeadThreshold", () => {
       where: {
         OR: [
           {
-            user: {
-              id: {
-                in: [2],
-              },
+            userId: {
+              in: [2],
             },
             OR: [
               {
diff --git a/packages/lib/server/repository/booking.ts b/packages/lib/server/repository/booking.ts
index 89bd95fdce640a..941c2c5abe7c7b 100644
--- a/packages/lib/server/repository/booking.ts
+++ b/packages/lib/server/repository/booking.ts
@@ -44,10 +44,8 @@ const buildWhereClauseForActiveBookings = ({
 }): Prisma.BookingWhereInput => ({
   OR: [
     {
-      user: {
-        id: {
-          in: users.map((user) => user.id),
-        },
+      userId: {
+        in: users.map((user) => user.id),
       },
       OR: [
         {
diff --git a/packages/trpc/server/routers/viewer/slots/util.ts b/packages/trpc/server/routers/viewer/slots/util.ts
index 0584e66f1ada58..d9dfff3a5a897c 100644
--- a/packages/trpc/server/routers/viewer/slots/util.ts
+++ b/packages/trpc/server/routers/viewer/slots/util.ts
@@ -986,22 +986,18 @@ const calculateHostsAndAvailabilities = async ({
   };
 
   const allUserIds = usersWithCredentials.map((user) => user.id);
-  const currentBookingsAllUsers = await monitorCallbackAsync(
-    getExistingBookings,
-    startTimeDate,
-    endTimeDate,
-    eventType,
-    sharedQuery,
-    usersWithCredentials,
-    allUserIds
-  );
-
-  const outOfOfficeDaysAllUsers = await monitorCallbackAsync(
-    getOOODates,
-    startTimeDate,
-    endTimeDate,
-    allUserIds
-  );
+  const [currentBookingsAllUsers, outOfOfficeDaysAllUsers] = await Promise.all([
+    monitorCallbackAsync(
+      getExistingBookings,
+      startTimeDate,
+      endTimeDate,
+      eventType,
+      sharedQuery,
+      usersWithCredentials,
+      allUserIds
+    ),
+    monitorCallbackAsync(getOOODates, startTimeDate, endTimeDate, allUserIds),
+  ]);
 
   const bookingLimits = parseBookingLimit(eventType?.bookingLimits);
   const durationLimits = parseDurationLimit(eventType?.durationLimits);