page load very slow

I have some 2010 pages open very slow, opens after around 1.5 min.

first of all I found search crawling take long time about 5 hours. I found a lot of errors in crawling log (This item could not be crawled because the repository did not respond within the specific timeout period try to crawl the repository at a later time or increase the timeout value on the proxy and timeout page in search administration you might also want to crawl this repository during off-peak usage times.)

I found those pages take long time to open. when I used developer dashboard to open sample page I found Wiki edit render take (149422.37 ms)

Those pages are in different site collections and different databases. plus it happen only with site collection home page. any other page open normally.

Below is the Wiki Edit Render part from the developer dashboard.  Any ideas.

• Wiki Edit Render (149422.37 ms)
  • Render Ribbon. (4.27 ms)
  • Xslt Transform (81.14 ms)
  • Xslt Transform#1 (104.65 ms)
    • ConfigurationList-GetConfigurationItem (49.02 ms)
      • EnsureListItemsData (27.45 ms)
    • ConfigurationList-GetConfigurationItem#1 (49.45 ms)
      • EnsureListItemsData (28.31 ms)
  • Xslt Transform#2 (107.93 ms)
    • ConfigurationList-GetConfigurationItem (51.11 ms)
      • EnsureListItemsData (28.90 ms)
    • ConfigurationList-GetConfigurationItem#1 (50.75 ms)
      • EnsureListItemsData (28.72 ms)
  • Xslt Transform#3 (61.99 ms)
  • ConfigurationList-GetConfigurationItem (45.57 ms)
    • EnsureListItemsData (26.86 ms)
  • ConfigurationList-GetConfigurationItem#1 (43.49 ms)
    • EnsureListItemsData (26.02 ms)
  • EnsureListItemsData (13.61 ms)
  • EnsureListItemsData#1 (12.58 ms)
  • EnsureListItemsData#2 (12.55 ms)
  • EnsureListItemsData#3 (12.08 ms)
  • EnsureListItemsData#4 (13.50 ms)
  • EnsureListItemsData#5 (12.83 ms)
  • EnsureListItemsData#6 (12.84 ms)
  • EnsureListItemsData#7 (17.58 ms)
  • EnsureListItemsData#8 (12.72 ms)
  • EnsureListItemsData#9 (11.78 ms)
  • EnsureListItemsData#10 (15.11 ms)
  • EnsureListItemsData#11 (12.46 ms)
  • EnsureListItemsData#12 (11.92 ms)
  • EnsureListItemsData#13 (12.23 ms)
  • EnsureListItemsData#14 (12.51 ms)
  • EnsureListItemsData#15 (12.78 ms)
  • EnsureListItemsData#16 (12.26 ms)
  • EnsureListItemsData#17 (12.55 ms)
  • EnsureListItemsData#18 (12.04 ms)
  • EnsureListItemsData#19 (14.86 ms)
  • EnsureListItemsData#20 (12.62 ms)
  • EnsureListItemsData#21 (12.94 ms)
  • EnsureListItemsData#22 (12.50 ms)
  • EnsureListItemsData#23 (13.19 ms)
  • EnsureListItemsData#24 (13.71 ms)
  • EnsureListItemsData#25 (12.18 ms)
  • EnsureListItemsData#26 (11.94 ms)
  • EnsureListItemsData#27 (12.95 ms)
  • EnsureListItemsData#28 (12.54 ms)
  • EnsureListItemsData#29 (12.48 ms)
  • EnsureListItemsData#30 (12.03 ms)
  • EnsureListItemsData#31 (12.10 ms)
  • EnsureListItemsData#32 (11.71 ms)
  • EnsureListItemsData#33 (12.77 ms)
  • EnsureListItemsData#34 (13.12 ms)
  • EnsureListItemsData#35 (13.05 ms)
  • EnsureListItemsData#36 (12.40 ms)
  • EnsureListItemsData#37 (12.45 ms)
  • EnsureListItemsData#38 (11.84 ms)
  • EnsureListItemsData#39 (13.59 ms)
  • EnsureListItemsData#40 (13.02 ms)
  • EnsureListItemsData#41 (12.91 ms)
  • EnsureListItemsData#42 (12.21 ms)
  • EnsureListItemsData#43 (12.80 ms)
  • EnsureListItemsData#44 (12.31 ms)
  • EnsureListItemsData#45 (12.83 ms)
  • EnsureListItemsData#46 (12.12 ms)
  • EnsureListItemsData#47 (13.34 ms)
  • EnsureListItemsData#48 (12.64 ms)
  • EnsureListItemsData#49 (13.61 ms)
  • EnsureListItemsData#50 (12.37 ms)
  • EnsureListItemsData#51 (12.34 ms)
  • EnsureListItemsData#52 (12.63 ms)
  • EnsureListItemsData#53 (13.98 ms)
  • EnsureListItemsData#54 (15.28 ms)
  • EnsureListItemsData#55 (13.95 ms)
  • EnsureListItemsData#56 (13.33 ms)
  • EnsureListItemsData#57 (14.25 ms)
  • EnsureListItemsData#58 (13.63 ms)
  • EnsureListItemsData#59 (13.73 ms)
  • EnsureListItemsData#60 (13.86 ms)
  • EnsureListItemsData#61 (13.97 ms)
  • EnsureListItemsData#62 (15.60 ms)
  • EnsureListItemsData#63 (13.81 ms)
  • EnsureListItemsData#64 (14.83 ms)
  • EnsureListItemsData#65 (15.38 ms)
  • EnsureListItemsData#66 (13.53 ms)
  • EnsureListItemsData#67 (12.48 ms)
  • EnsureListItemsData#68 (13.98 ms)
  • EnsureListItemsData#69 (15.08 ms)
  • EnsureListItemsData#70 (16.15 ms)
  • EnsureListItemsData#71 (12.51 ms)
  • EnsureListItemsData#72 (12.31 ms)
  • EnsureListItemsData#73 (12.15 ms)
  • EnsureListItemsData#74 (12.03 ms)
  • EnsureListItemsData#75 (12.74 ms)
  • EnsureListItemsData#76 (12.79 ms)
  • EnsureListItemsData#77 (13.90 ms)
  • EnsureListItemsData#78 (14.03 ms)
  • EnsureListItemsData#79 (13.73 ms)
  • EnsureListItemsData#80 (13.78 ms)
  • EnsureListItemsData#81 (12.82 ms)
  • EnsureListItemsData#82 (13.30 ms)
  • EnsureListItemsData#83 (12.91 ms)
  • EnsureListItemsData#84 (12.51 ms)
  • EnsureListItemsData#85 (12.99 ms)
  • EnsureListItemsData#86 (13.27 ms)
  • EnsureListItemsData#87 (14.71 ms)
  • EnsureListItemsData#88 (13.49 ms)
  • EnsureListItemsData#89 (13.55 ms)
  • EnsureListItemsData#90 (14.45 ms)
  • EnsureListItemsData#91 (14.64 ms)
  • EnsureListItemsData#92 (15.34 ms)
  • EnsureListItemsData#93 (14.81 ms)
  • EnsureListItemsData#94 (14.43 ms)
  • EnsureListItemsData#95 (13.70 ms)
  • EnsureListItemsData#96 (12.91 ms)
  • EnsureListItemsData#97 (13.60 ms)
  • EnsureListItemsData#98 (12.19 ms)
  • EnsureListItemsData#99 (13.31 ms)