Как филлеры могут навредить?

----- SPEED TEST START ----
0.00000000000: 0.00000000000 site.php == index.php
0.00017094612: 0.00017094612 site.php == captcha
0.00017309189: 0.00000214577 site.php == Начало
0.00017404556: 0.00000095367 site.php == Перед engine
0.00059890747: 0.00042486191 site.php == После engine
0.00281000137: 0.00221109390 site.php == _get_base_data start
0.00878810883: 0.00597810745 site.php == _get_base_data stop
0.00971102715: 0.00092291832 site.php == !!!!!!
0.01400399208: 0.00429296494 site.php == !!!!!!2
0.01400494576: 0.00000095367 site.php == Перед engine->draw(index)
0.01490402222: 0.00089907646 site.php == После engine->draw(index)
0.01492595673: 0.00002193451 site.php == check_lazy_images start
0.01503992081: 0.00011396408 site.php == check_lazy_images finish
0.01503992081: 0.00000000000 site.php == check_lazy_frame start
0.01509690285: 0.00005698204 site.php == check_lazy_frame finish
0.01509690285: 0.00000000000 site.php == Перед engine->rewrite->replace_html
0.01802897453: 0.00293207169 site.php == После engine->rewrite->replace_html
---- SPEED TEST END ----