drop default CacheSize to 100

config/config.go

@@ -137,7 +137,7 @@ func (s *ServerConfig) LoadConfig() error {
 	s.APIBaseTimeout = 500 * time.Millisecond
 	s.APIMaxBackoffTime = 8000 * time.Millisecond
 
-	s.CacheSize = 1000
+	s.CacheSize = 100
 	s.CacheTTL = 5 * time.Minute
 
 	s.ResponseSaveLocation = "/tmp/pixivfe/responses"

doc/hosting/environment-variables.md

@@ -205,7 +205,7 @@ PixivFE caches responses from the Pixiv API to improve performance. The followin
 
 **Required**: No
 
-**Default:** `1000`
+**Default:** `100`
 
 Specifies the maximum number of items that can be stored in the cache. This limits the memory usage of the cache.