I don't see anything intrinsically wrong with your DCT(no WYSIWYG textareas, only one inline and not nested)What's the CPU and RAM specs for your server?What else (enterprise application-wise) is running on your server?
1) We have 2 CPU with following spec - 2CPU Processor - x86 Familty 6 Model 15 Stepping 8 GenuineIntel 2.33 GHz RAM - 3GB RAM.2) Other than Teamsite, no major application are running on the system.I read the teamsite installation planning guide. System configuration needed to install only teamsite server, is 2 CPU with 4GB RAM.Is RAM may be a problem ?
There can be issue with your .js file too.