打开PDF文件很卡怎么回事

页面:/news/view-1334006/ | 耗时:0.1291 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=1334006 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1334006 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1334006 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1131089,1068264,1107641,1095512,1071759,1132897,1074851,2532730,1089644,573716,1090659,1129777,1129543,1071533,1055694,1041471,1123271,1112336,1043991,1085460,1099707,1072511,1370195,1064543,1124845,1110590,1132059,1083181,1075949,1046926) ORDER BY field (ArticleID,1131089,1068264,1107641,1095512,1071759,1132897,1074851,2532730,1089644,573716,1090659,1129777,1129543,1071533,1055694,1041471,1123271,1112336,1043991,1085460,1099707,1072511,1370195,1064543,1124845,1110590,1132059,1083181,1075949,1046926)