Getting your fortification to 3 will make a huge difference (vs fort of 2 or 1). While exceptions are always possible, in general, it appears to often be difficult to have a stash of much more than 0.5 to 0.8 max PART with a fort of 1 or 2 without getting farmed. At fort of 3 there is typically at least 1 page worth of accounts with a claimable balance of 3 or more PART. So, with your other stats as they are, if you bring your fort to 3 you should generate PART at a pace less than 3 per 8 hours and should rarely if ever get farmed (assuming of course you are claiming asap every 8 hours).