added realtime tick times overlay, turn on by pressing 'O'

changed color indication: red >2000ms/10s, orange >1000, yellow >500, white. fixed showing wrong structure gen time

changed color indication: red >2000ms/10s, orange >1000, yellow >500, white. fixed showing wrong structure gen time

updated UI; added in the config: freeze detection on/of and its threshold

updated UI; added in the config: freeze detection on/of and its threshold