mongodb query explain and index nscanned bigger than nscannedObjects - mongodb

Question

I been having a problem with my query. its not performing well.
its doing like 300ms - 1000ms.
I added index on each of the column. but can't seem to get it right.
sorry forgot to mention the document below is the query for upsert.
there is just an additiona {value.count:1}
document:
{
"_id.browser" : "Facebook",
"_id.c1" : "hpb",
"_id.c2" : "003",
"_id.c3" : "us100_01",
"_id.c4" : "us-18-13a",
"_id.campaign_id" : "47cff2989aef12808a8a596b9b703efc",
"_id.city" : "Edgewood",
"_id.cloaked" : "0",
"_id.country" : "United States",
"_id.date_visited" : "2016-11-16",
"_id.device_name" : "Samsung Galaxy S6",
"_id.device_type" : "mobile",
"_id.domain" : "healthypowerbuzz.com",
"_id.hour_visited" : "10",
"_id.isp" : "AT&T U-verse",
"_id.landingpage_id" : "38a67be59dc9d8f6db81be94b207f2d7",
"_id.netspeed_id" : NumberLong(3),
"_id.offer_id" : [
{
"offer_id" : "cd0d1a0fa7021b99a6f1b630cac64a39"
},
{
"offer_id" : "1f42d6d81d69bf8c9912ae75544eea9c"
}
],
"_id.org" : "AT&T U-verse",
"_id.platform" : "Android",
"_id.server_id" : "b5e04772f2ee237a36f24e8298c3d002",
"_id.set" : "13",
"_id.traffic_account_id" : "cdd60f26f1723f05ee4e964a8e6f43a7",
"_id.week_visited" : "Wednesday",
"value.count" : 100
}
query:
db.tes.update(
{
"_id.browser" : "Facebook",
"_id.c1" : "hpb",
"_id.c2" : "003",
"_id.c3" : "us100_01",
"_id.c4" : "us-18-13a",
"_id.campaign_id" : "47cff2989aef12808a8a596b9b703efc",
"_id.city" : "Edgewood",
"_id.cloaked" : "0",
"_id.country" : "United States",
"_id.date_visited" : "2016-11-16",
"_id.device_name" : "Samsung Galaxy S6",
"_id.device_type" : "mobile",
"_id.domain" : "healthypowerbuzz.com",
"_id.hour_visited" : "10",
"_id.isp" : "AT&T U-verse",
"_id.landingpage_id" : "38a67be59dc9d8f6db81be94b207f2d7",
"_id.netspeed_id" : NumberLong(3),
"_id.offer_id" : [
{
"offer_id" : "cd0d1a0fa7021b99a6f1b630cac64a39"
},
{
"offer_id" : "1f42d6d81d69bf8c9912ae75544eea9c"
}
],
"_id.org" : "AT&T U-verse",
"_id.platform" : "Android",
"_id.server_id" : "b5e04772f2ee237a36f24e8298c3d002",
"_id.set" : "13",
"_id.traffic_account_id" : "cdd60f26f1723f05ee4e964a8e6f43a7",
"_id.week_visited" : "Wednesday"},
{
$inc: { value.count:1 }
},
{ upsert: true }
)
I added a compound index on each of those. because I use it for upsert $inc count: 1. but its really slow.
when I explain I get this. I need help on how to handle this.
"n" : 1,
"nscannedObjects" : 7773,
"nscanned" : 15546,
"nscannedObjectsAllPlans" : 7773,
"nscannedAllPlans" : 15546,