Perez Hilton is seriously motivated to sell his Las Vegas mansion ASAP … so much so that the blogger just lowered the price of the six-bedroom home by $350,000.

Perez initially listed his Sin City house for $4.25 million back in June … but the asking price on the 6,600-square-foot property is now down to $3.9 million … a significant reduction.

As we told you … when Perez initially put his Las Vegas house up for sale, he told friends he was very stressed about finances — especially after moving to Miami, which limited his freebies.

The father of 3 also previously opened up to fans in a video in May about how his weeks-long hospital stay earlier in the year had dwindled his bank account.

Before making the move to the East Coast … Perez filmed a video with his 3 kids all about how excited he was for new opportunities in Miami.

As we reported … cops say Perez was treated for an overdose in early August following his disturbing stream where he appeared to self-harm.