I would like to optimize APC some more but I am not sure where I could do something. First here is the stats after 1 week of running with the current configuration:

General Cache Information

APC Version 3.1.9
PHP Version 5.4.4
APC Host XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Server Software Apache
Shared Memory 1 Segment(s) with 128.0 MBytes (IPC shared memory, Windows Slim RWLOCK (native) locking)
Start Time 2014/06/08 05:00:00
Uptime 6 days, 11 hours and 55 minutes
File Upload Support 1

Host Status Diagrams

Memory Usage

Free: 99.7 MBytes (77.9%)
Used: 28.3 MBytes (22.1%)

Hits & Misses

Hits: 510818 (99.9%)
Misses: 608 (0.1%)

Detailed Memory Usage and Fragmentation

Fragmentation: 0.60% (609.8 KBytes out of 99.7 MBytes in 83 fragments) 

File Cache Information

Cached Files 693 ( 35.4 MBytes)
Hits 5143359
Misses 1087
Request Rate (hits, misses) 13.24 cache requests/second
Hit Rate 13.24 cache requests/second
Miss Rate 0.00 cache requests/second
Insert Rate 0.01 cache requests/second
Cache full count 0

User Cache Information

Cached Variables 0 ( 0.0 Bytes)
Hits 0
Misses 0
Request Rate (hits, misses) 0.00 cache requests/second
Hit Rate 0.00 cache requests/second
Miss Rate 0.00 cache requests/second
Insert Rate 0.00 cache requests/second
Cache full count 0

Runtime Settings

apc.cache_by_default 1
apc.canonicalize 1
apc.coredump_unmap 0
apc.enable_cli 0
apc.enabled 1
apc.file_md5 0
apc.file_update_protection 2
apc.filters -/apc.php$, -/apc_clean.php$, -.tpl.cache.php$, -.tpl.php$, -.string.cache.php$, -.string.php$
apc.gc_ttl 3600
apc.include_once_override 0
apc.lazy_classes 0
apc.lazy_functions 0
apc.max_file_size 2M
apc.num_files_hint 7000
apc.preload_path
apc.report_autofilter 0
apc.rfc1867 0
apc.rfc1867_freq 0
apc.rfc1867_name APC_UPLOAD_PROGRESS
apc.rfc1867_prefix upload_
apc.rfc1867_ttl 3600
apc.serializer default
apc.shm_segments 1
apc.shm_size 128M
apc.shm_strings_buffer 4M
apc.slam_defense 0
apc.stat 1
apc.stat_ctime 0
apc.ttl 7200
apc.use_request_time 1
apc.user_entries_hint 4096
apc.user_ttl 7200
apc.write_lock 1